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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chelsey Welch

Bib: 19550 •F •Age: N/A

NE

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 29%
Gender (Female)
#0 / 12578
Top 12%
Masters (Masters Women)
#0 / 6862
Top 3%
Age Group (F40-44)
#0 / 1737
Top 7%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Chelsey

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 · 6:45/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
22:07
3.11 mi
Rank: #9508
Start → 5K
22:07 | 7:08/mi
10K
44:36
6.21 mi
Rank: #10000 (-492)
5K → 10K
22:29 | 7:15/mi
15K
1:07:02
9.32 mi
Rank: #10075 (-75)
10K → 15K
22:26 | 7:14/mi
20K
1:29:26
12.43 mi
Rank: #9862 (+213)
15K → 20K
22:24 | 7:13/mi
HALF
1:34:19
13.11 mi
Rank: #9865 (-3)
20K → HALF
4:53 | 7:10/mi
25K
1:51:46
15.53 mi
Rank: #9660 (+205)
HALF → 25K
17:27 | 7:12/mi
30K
2:14:33
18.64 mi
Rank: #9395 (+265)
25K → 30K
22:47 | 7:20/mi
20M
2:24:30
20.00 mi
Rank: #9233 (+162)
30K → 20M
9:57 | 7:20/mi
21M
2:32:09
21.00 mi
Rank: #9099 (+134)
20M → 21M
7:39 | 7:39/mi
35K
2:37:26
21.75 mi
Rank: #9007 (+92)
21M → 35K
5:17 | 7:04/mi
23M
2:46:37
23.00 mi
Rank: #8881 (+126)
35K → 23M
9:11 | 7:21/mi
24M
2:53:38
24.00 mi
Rank: #8732 (+149)
23M → 24M
7:01 | 7:01/mi
40K
2:59:46
24.85 mi
Rank: #8604 (+128)
24M → 40K
6:08 | 7:11/mi
25.2M
3:02:23
25.20 mi
Rank: #8537 (+67)
40K → 25.2M
2:37 | 7:36/mi
FINISH
3:09:16
26.22 mi
Rank: #8392 (+145)
25.2M → FINISH
6:53 | 6:46/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:34:19
Pace7:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:57
Pace7:15 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:3422:077:0822:07
7:08
-
10K
6.21 mi11:28:0344:367:1122:29
7:15
+0:07
15K
9.32 mi11:50:291:07:027:1222:26
7:14
-0:01
20K
12.43 mi12:12:531:29:267:1222:24
7:13
-0:01
HALF
13.11 mi12:17:461:34:197:124:53
7:10
-0:03
25K
15.53 mi12:35:131:51:467:1217:27
7:12
+0:02
30K
18.64 mi12:58:002:14:337:1422:47
7:20
+0:08
20M
20.00 mi13:07:572:24:307:149:57
7:20
0:00
21M
21.00 mi13:15:362:32:097:157:39
7:39
+0:19
35K
21.75 mi13:20:532:37:267:155:17
7:04
-0:35
23M
23.00 mi13:30:042:46:377:159:11
7:21
+0:17
24M
24.00 mi13:37:052:53:387:157:01
7:01
-0:20
40K
24.85 mi13:43:132:59:467:146:08
7:11
+0:10
25.2M
25.20 mi13:45:503:02:237:152:37
7:36
+0:25
FINISH
26.22 mi13:52:433:09:167:146:53
6:46
-0:50

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

6:46 /mi

Average Pace

7:13 /mi

Slowest Pace

7:39 /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

2:59:00

95% of race

Time at Steady Pace

10:16

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi11:05:3422:077:0822:07
7:08
#9508
10K
6.21 mi11:28:0344:367:1122:29
7:15
#10000
15K
9.32 mi11:50:291:07:027:1222:26
7:14
#10075
20K
12.43 mi12:12:531:29:267:1222:24
7:13
#9862
HALF
13.11 mi12:17:461:34:197:124:53
7:10
#9865
25K
15.53 mi12:35:131:51:467:1217:27
7:12
#9660
30K
18.64 mi12:58:002:14:337:1422:47
7:20
#9395
20M
20.00 mi13:07:572:24:307:149:57
7:20
#9233
21M
21.00 mi13:15:362:32:097:157:39
7:39
#9099
35K
21.75 mi13:20:532:37:267:155:17
7:04
#9007
23M
23.00 mi13:30:042:46:377:159:11
7:21
#8881
24M
24.00 mi13:37:052:53:387:157:01
7:01
#8732
40K
24.85 mi13:43:132:59:467:146:08
7:11
#8604
25.2M
25.20 mi13:45:503:02:237:152:37
7:36
#8537
FINISH
26.22 mi13:52:433:09:167:146:53
6:46
#8392
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi95081635163510303(Top 36%)2102(Top 17%)2102(Top 121%)
10K6.21 mi3.10 mi10000-4921895-2601895-26010593(Top 37%)2197(Top 17%)2197(Top 126%)
15K9.32 mi3.11 mi10075-751943-481943-4810303(Top 36%)2102(Top 17%)2102(Top 121%)
20K12.43 mi3.11 mi9862+2131870+731870+739443(Top 33%)1769(Top 14%)1769(Top 102%)
HALF13.11 mi0.68 mi9865-31875-51875-510001(Top 34%)1976(Top 16%)1976(Top 114%)
25K15.53 mi2.42 mi9660+2051808+671808+678850(Top 30%)1590(Top 13%)1590(Top 92%)
30K18.64 mi3.11 mi9395+2651736+721736+728362(Top 29%)1533(Top 12%)1533(Top 88%)
20M20.00 mi1.36 mi9233+1621699+371699+377869(Top 27%)1422(Top 11%)1422(Top 82%)
21M21.00 mi1.00 mi9099+1341663+361663+367537(Top 26%)1420(Top 11%)1420(Top 82%)
35K21.75 mi0.75 mi9007+921640+231640+237614(Top 26%)1394(Top 11%)1394(Top 80%)
23M23.00 mi1.25 mi8881+1261623+171623+177754(Top 27%)1524(Top 12%)1524(Top 88%)
24M24.00 mi1.00 mi8732+1491586+371586+376619(Top 23%)1162(Top 9%)1162(Top 67%)
40K24.85 mi0.85 mi8604+1281557+291557+296620(Top 23%)1218(Top 10%)1218(Top 70%)
25.2M25.20 mi0.35 mi8537+671539+181539+185847(Top 20%)1020(Top 8%)1020(Top 59%)
FINISH26.22 mi1.02 mi8392+1451502+371502+375852(Top 20%)1062(Top 8%)1062(Top 61%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21
+97ft-345ft

Overall

10303

Females

2102

F40-44

2102

5K→10K

3.1 - 6.2 mi

Top 37%
×5
+79ft-138ft

Overall

10593

Females

2197

F40-44

2197

10K→15K

6.2 - 9.3 mi

Top 36%
×3
+67ft-78ft

Overall

10303

Females

2102

F40-44

2102

15K→20K

9.3 - 12.4 mi

Top 33%
×5
+106ft-86ft

Overall

9443

Females

1769

F40-44

1769

20K→HALF

12.4 - 13.1 mi

Top 34%
×2
+19ft-37ft

Overall

10001

Females

1976

F40-44

1976

HALF→25K

13.1 - 15.5 mi

Top 30%
×4
+66ft-88ft

Overall

8850

Females

1590

F40-44

1590

25K→30K

15.5 - 18.6 mi

Top 29%
×9
+181ft-148ft

Overall

8362

Females

1533

F40-44

1533

30K→20M

18.6 - 20.0 mi

Top 27%
×5
+64ft-50ft

Overall

7869

Females

1422

F40-44

1422

20M→21M

20.0 - 21.0 mi

Top 26%
×8
+106ft-24ft

Overall

7537

Females

1420

F40-44

1420

21M→35K

21.0 - 21.8 mi

Top 26%
×7
+17ft-86ft

Overall

7614

Females

1394

F40-44

1394

35K→23M

21.8 - 23.0 mi

Top 27%
×5
+23ft-63ft

Overall

7754

Females

1524

F40-44

1524

23M→24M

23.0 - 24.0 mi

Top 23%
×6
+12ft-82ft

Overall

6619

Females

1162

F40-44

1162

24M→40K

24.0 - 24.9 mi

Top 23%
×1
+6ft-20ft

Overall

6620

Females

1218

F40-44

1218

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1
+13ft-16ft

Overall

5847

Females

1020

F40-44

1020

25.2M→FINISH

25.2 - 26.2 mi

Top 20%
×2
+22ft-21ft

Overall

5852

Females

1062

F40-44

1062

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2173*
Passed By
659
Net Change
+1116
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9508
5K → 10K86200-492#9508#10000
10K → 15K145200-75#10000#10075
15K → 20K272*59+213#10075#9862
20K → HALF2326-3#9862#9865
HALF → 25K229*24+205#9865#9660
25K → 30K303*38+265#9660#9395
30K → 20M18119+162#9395#9233
20M → 21M15218+134#9233#9099
21M → 35K10715+92#9099#9007
35K → 23M16034+126#9007#8881
23M → 24M1556+149#8881#8732
24M → 40K1368+128#8732#8604
40K → 25.2M714+67#8604#8537
25.2M → FINISH1538+145#8537#8392
TOTALS2173*659+1116

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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