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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Siwei Luo

Bib: 30251 •F •Age: N/A

MD

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds
Personalized for Siwei

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 12:29/mi at mile 26.2

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
One-time purchase · Instant access · Downloadable PDF · Shareable report

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
39:34
3.11 mi
Rank: #28953
Start → 5K
39:34 | 12:45/mi
10K
1:20:24
6.21 mi
Rank: #28968 (-15)
5K → 10K
40:50 | 13:09/mi
15K
2:01:36
9.32 mi
Rank: #28959 (+9)
10K → 15K
41:12 | 13:16/mi
20K
2:43:38
12.43 mi
Rank: #28946 (+13)
15K → 20K
42:02 | 13:32/mi
HALF
2:52:36
13.11 mi
Rank: #28944 (+2)
20K → HALF
8:58 | 13:10/mi
25K
3:25:53
15.53 mi
Rank: #28923 (+21)
HALF → 25K
33:17 | 13:44/mi
30K
4:09:16
18.64 mi
Rank: #28884 (+39)
25K → 30K
43:23 | 13:58/mi
20M
4:29:10
20.00 mi
Rank: #28870 (+14)
30K → 20M
19:54 | 14:40/mi
21M
4:43:42
21.00 mi
Rank: #28857 (+13)
20M → 21M
14:32 | 14:32/mi
35K
4:53:55
21.75 mi
Rank: #28845 (+12)
21M → 35K
10:13 | 13:40/mi
23M
5:11:18
23.00 mi
Rank: #28836 (+9)
35K → 23M
17:23 | 13:54/mi
24M
5:24:58
24.00 mi
Rank: #28822 (+14)
23M → 24M
13:40 | 13:40/mi
40K
5:36:53
24.85 mi
Rank: #28811 (+11)
24M → 40K
11:55 | 13:57/mi
25.2M
5:42:07
25.20 mi
Rank: #28807 (+4)
40K → 25.2M
5:14 | 15:11/mi
FINISH
5:54:50
26.22 mi
Rank: #28787 (+20)
25.2M → FINISH
12:43 | 12:29/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:52:36
Pace13:10 /mi
2nd Half
Distance13.11 mi
Time3:02:14
Pace13:55 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:04:2039:3412:4539:34
12:45
-
10K
6.21 mi12:45:101:20:2412:5740:50
13:09
+0:24
15K
9.32 mi13:26:222:01:3613:0341:12
13:16
+0:07
20K
12.43 mi14:08:242:43:3813:1142:02
13:32
+0:16
HALF
13.11 mi14:17:222:52:3613:108:58
13:10
-0:22
25K
15.53 mi14:50:393:25:5313:1633:17
13:44
+0:34
30K
18.64 mi15:34:024:09:1613:2343:23
13:58
+0:14
20M
20.00 mi15:53:564:29:1013:2819:54
14:40
+0:42
21M
21.00 mi16:08:284:43:4213:3114:32
14:32
-0:08
35K
21.75 mi16:18:414:53:5513:3110:13
13:40
-0:52
23M
23.00 mi16:36:045:11:1813:3317:23
13:54
+0:14
24M
24.00 mi16:49:445:24:5813:3313:40
13:40
-0:14
40K
24.85 mi17:01:395:36:5313:3411:55
13:57
+0:17
25.2M
25.20 mi17:06:535:42:0713:355:14
15:11
+1:14
FINISH
26.22 mi17:19:365:54:5013:3312:43
12:29
-2:42

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

12:29 /mi

Average Pace

13:33 /mi

Slowest Pace

15:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:23:17

40% of race

Time at Steady Pace

2:51:53

48% of race

Time at Slower Pace

39:40

11% of race

Average Pace: 13:32 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi12:04:2039:3412:4539:34
12:45
#28953
10K
6.21 mi12:45:101:20:2412:5740:50
13:09
#28968
15K
9.32 mi13:26:222:01:3613:0341:12
13:16
#28959
20K
12.43 mi14:08:242:43:3813:1142:02
13:32
#28946
HALF
13.11 mi14:17:222:52:3613:108:58
13:10
#28944
25K
15.53 mi14:50:393:25:5313:1633:17
13:44
#28923
30K
18.64 mi15:34:024:09:1613:2343:23
13:58
#28884
20M
20.00 mi15:53:564:29:1013:2819:54
14:40
#28870
21M
21.00 mi16:08:284:43:4213:3114:32
14:32
#28857
35K
21.75 mi16:18:414:53:5513:3110:13
13:40
#28845
23M
23.00 mi16:36:045:11:1813:3317:23
13:54
#28836
24M
24.00 mi16:49:445:24:5813:3313:40
13:40
#28822
40K
24.85 mi17:01:395:36:5313:3411:55
13:57
#28811
25.2M
25.20 mi17:06:535:42:0713:355:14
15:11
#28807
FINISH
26.22 mi17:19:365:54:5013:3312:43
12:29
#28787
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi28953125361253628898(Top 100%)12499(Top 99%)12499(Top 700%)
10K6.21 mi3.10 mi28968-1512550-1412550-1428955(Top 100%)12541(Top 100%)12541(Top 702%)
15K9.32 mi3.11 mi28959+912538+1212538+1228898(Top 100%)12499(Top 99%)12499(Top 700%)
20K12.43 mi3.11 mi28946+1312531+712531+728815(Top 99%)12449(Top 99%)12449(Top 697%)
HALF13.11 mi0.68 mi28944+212528+312528+328764(Top 99%)12441(Top 99%)12441(Top 697%)
25K15.53 mi2.42 mi28923+2112513+1512513+1528591(Top 99%)12326(Top 98%)12326(Top 690%)
30K18.64 mi3.11 mi28884+3912493+2012493+2028338(Top 98%)12208(Top 97%)12208(Top 684%)
20M20.00 mi1.36 mi28870+1412482+1112482+1128480(Top 98%)12300(Top 98%)12300(Top 689%)
21M21.00 mi1.00 mi28857+1312476+612476+627764(Top 96%)11943(Top 95%)11943(Top 669%)
35K21.75 mi0.75 mi28845+1212473+312473+328151(Top 97%)12177(Top 97%)12177(Top 682%)
23M23.00 mi1.25 mi28836+912468+512468+528074(Top 97%)12130(Top 96%)12130(Top 679%)
24M24.00 mi1.00 mi28822+1412460+812460+828154(Top 97%)12194(Top 97%)12194(Top 683%)
40K24.85 mi0.85 mi28811+1112456+412456+427854(Top 96%)12042(Top 96%)12042(Top 674%)
25.2M25.20 mi0.35 mi28807+412454+212454+228033(Top 97%)12145(Top 97%)12145(Top 680%)
FINISH26.22 mi1.02 mi28787+2012441+1312441+1327883(Top 96%)12064(Top 96%)12064(Top 675%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21
+97ft-345ft

Overall

28898

Females

12499

F45-49

12499

5K→10K

3.1 - 6.2 mi

Top 100%
×5
+79ft-138ft

Overall

28955

Females

12541

F45-49

12541

10K→15K

6.2 - 9.3 mi

Top 100%
×3
+67ft-78ft

Overall

28898

Females

12499

F45-49

12499

15K→20K

9.3 - 12.4 mi

Top 99%
×5
+106ft-86ft

Overall

28815

Females

12449

F45-49

12449

20K→HALF

12.4 - 13.1 mi

Top 99%
×2
+19ft-37ft

Overall

28764

Females

12441

F45-49

12441

HALF→25K

13.1 - 15.5 mi

Top 99%
×4
+66ft-88ft

Overall

28591

Females

12326

F45-49

12326

25K→30K

15.5 - 18.6 mi

Top 98%
×9
+181ft-148ft

Overall

28338

Females

12208

F45-49

12208

30K→20M

18.6 - 20.0 mi

Top 98%
×5
+64ft-50ft

Overall

28480

Females

12300

F45-49

12300

20M→21M

20.0 - 21.0 mi

Top 96%
×8
+106ft-24ft

Overall

27764

Females

11943

F45-49

11943

21M→35K

21.0 - 21.8 mi

Top 97%
×7
+17ft-86ft

Overall

28151

Females

12177

F45-49

12177

35K→23M

21.8 - 23.0 mi

Top 97%
×5
+23ft-63ft

Overall

28074

Females

12130

F45-49

12130

23M→24M

23.0 - 24.0 mi

Top 97%
×6
+12ft-82ft

Overall

28154

Females

12194

F45-49

12194

24M→40K

24.0 - 24.9 mi

Top 96%
×1
+6ft-20ft

Overall

27854

Females

12042

F45-49

12042

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1
+13ft-16ft

Overall

28033

Females

12145

F45-49

12145

25.2M→FINISH

25.2 - 26.2 mi

Top 96%
×2
+22ft-21ft

Overall

27883

Females

12064

F45-49

12064

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
223
Passed By
57
Net Change
+166
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28953
5K → 10K520-15#28953#28968
10K → 15K134+9#28968#28959
15K → 20K174+13#28959#28946
20K → HALF31+2#28946#28944
HALF → 25K221+21#28944#28923
25K → 30K456+39#28923#28884
30K → 20M173+14#28884#28870
20M → 21M130+13#28870#28857
21M → 35K142+12#28857#28845
35K → 23M156+9#28845#28836
23M → 24M162+14#28836#28822
24M → 40K132+11#28822#28811
40K → 25.2M73+4#28811#28807
25.2M → FINISH233+20#28807#28787
TOTALS22357+166
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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