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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Sarah Underwood

Bib: 20489 •F •Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds
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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
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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
26:13
3.11 mi
Rank: #19742
Start → 5K
26:13 | 8:27/mi
10K
53:15
6.21 mi
Rank: #20566 (-824)
5K → 10K
27:02 | 8:43/mi
15K
1:20:46
9.32 mi
Rank: #21110 (-544)
10K → 15K
27:31 | 8:52/mi
20K
1:48:35
12.43 mi
Rank: #21230 (-120)
15K → 20K
27:49 | 8:58/mi
HALF
1:54:31
13.11 mi
Rank: #21231 (-1)
20K → HALF
5:56 | 8:43/mi
25K
2:16:09
15.53 mi
Rank: #21159 (+72)
HALF → 25K
21:38 | 8:56/mi
30K
2:45:00
18.64 mi
Rank: #21069 (+90)
25K → 30K
28:51 | 9:18/mi
20M
2:57:17
20.00 mi
Rank: #20938 (+131)
30K → 20M
12:17 | 9:03/mi
21M
3:06:44
21.00 mi
Rank: #20770 (+168)
20M → 21M
9:27 | 9:27/mi
35K
3:13:41
21.75 mi
Rank: #20782 (-12)
21M → 35K
6:57 | 9:18/mi
23M
3:25:01
23.00 mi
Rank: #20675 (+107)
35K → 23M
11:20 | 9:04/mi
24M
3:34:04
24.00 mi
Rank: #20624 (+51)
23M → 24M
9:03 | 9:03/mi
40K
3:41:41
24.85 mi
Rank: #20523 (+101)
24M → 40K
7:37 | 8:55/mi
25.2M
3:44:50
25.20 mi
Rank: #20451 (+72)
40K → 25.2M
3:09 | 9:09/mi
FINISH
3:53:09
26.22 mi
Rank: #20298 (+153)
25.2M → FINISH
8:19 | 8:10/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:54:31
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time1:58:38
Pace9:03 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:11:5326:138:2726:13
8:27
-
10K
6.21 mi11:38:5553:158:3527:02
8:43
+0:16
15K
9.32 mi12:06:261:20:468:4027:31
8:52
+0:09
20K
12.43 mi12:34:151:48:358:4527:49
8:58
+0:06
HALF
13.11 mi12:40:111:54:318:455:56
8:43
-0:15
25K
15.53 mi13:01:492:16:098:4621:38
8:56
+0:13
30K
18.64 mi13:30:402:45:008:5228:51
9:18
+0:22
20M
20.00 mi13:42:572:57:178:5212:17
9:03
-0:15
21M
21.00 mi13:52:243:06:448:549:27
9:27
+0:24
35K
21.75 mi13:59:213:13:418:556:57
9:18
-0:09
23M
23.00 mi14:10:413:25:018:5511:20
9:04
-0:14
24M
24.00 mi14:19:443:34:048:569:03
9:03
-0:01
40K
24.85 mi14:27:213:41:418:567:37
8:55
-0:08
25.2M
25.20 mi14:30:303:44:508:563:09
9:09
+0:14
FINISH
26.22 mi14:38:493:53:098:548:19
8:10
-0:59

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

8:10 /mi

Average Pace

8:54 /mi

Slowest Pace

9:27 /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

2:32:05

65% of race

Time at Steady Pace

1:21:04

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:54 /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 mi11:11:5326:138:2726:13
8:27
#19742
10K
6.21 mi11:38:5553:158:3527:02
8:43
#20566
15K
9.32 mi12:06:261:20:468:4027:31
8:52
#21110
20K
12.43 mi12:34:151:48:358:4527:49
8:58
#21230
HALF
13.11 mi12:40:111:54:318:455:56
8:43
#21231
25K
15.53 mi13:01:492:16:098:4621:38
8:56
#21159
30K
18.64 mi13:30:402:45:008:5228:51
9:18
#21069
20M
20.00 mi13:42:572:57:178:5212:17
9:03
#20938
21M
21.00 mi13:52:243:06:448:549:27
9:27
#20770
35K
21.75 mi13:59:213:13:418:556:57
9:18
#20782
23M
23.00 mi14:10:413:25:018:5511:20
9:04
#20675
24M
24.00 mi14:19:443:34:048:569:03
9:03
#20624
40K
24.85 mi14:27:213:41:418:567:37
8:55
#20523
25.2M
25.20 mi14:30:303:44:508:563:09
9:09
#20451
FINISH
26.22 mi14:38:493:53:098:548:19
8:10
#20298
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi197427496749622011(Top 76%)8644(Top 69%)8644(Top 151%)
10K6.21 mi3.10 mi20566-8247922-4267922-42621439(Top 74%)8362(Top 66%)8362(Top 146%)
15K9.32 mi3.11 mi21110-5448200-2788200-27822011(Top 76%)8644(Top 69%)8644(Top 151%)
20K12.43 mi3.11 mi21230-1208282-828282-8221724(Top 75%)8522(Top 68%)8522(Top 149%)
HALF13.11 mi0.68 mi21231-18281+18281+121370(Top 74%)8297(Top 66%)8297(Top 145%)
25K15.53 mi2.42 mi21159+728243+388243+3820805(Top 72%)8067(Top 64%)8067(Top 141%)
30K18.64 mi3.11 mi21069+908217+268217+2620890(Top 72%)8201(Top 65%)8201(Top 143%)
20M20.00 mi1.36 mi20938+1318162+558162+5519167(Top 66%)7369(Top 59%)7369(Top 129%)
21M21.00 mi1.00 mi20770+1688079+838079+8318341(Top 63%)6980(Top 55%)6980(Top 122%)
35K21.75 mi0.75 mi20782-128099-208099-2021134(Top 73%)8502(Top 68%)8502(Top 149%)
23M23.00 mi1.25 mi20675+1078052+478052+4718798(Top 65%)7372(Top 59%)7372(Top 129%)
24M24.00 mi1.00 mi20624+518044+88044+819693(Top 68%)7899(Top 63%)7899(Top 138%)
40K24.85 mi0.85 mi20523+1018005+398005+3917987(Top 62%)7035(Top 56%)7035(Top 123%)
25.2M25.20 mi0.35 mi20451+727977+287977+2815558(Top 54%)5757(Top 46%)5757(Top 101%)
FINISH26.22 mi1.02 mi20298+1537914+637914+6316237(Top 56%)6089(Top 48%)6089(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

22011

Females

8644

F18-39

8644

5K→10K

3.1 - 6.2 mi

Top 74%
×5
+79ft-138ft

Overall

21439

Females

8362

F18-39

8362

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

22011

Females

8644

F18-39

8644

15K→20K

9.3 - 12.4 mi

Top 75%
×5
+106ft-86ft

Overall

21724

Females

8522

F18-39

8522

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21370

Females

8297

F18-39

8297

HALF→25K

13.1 - 15.5 mi

Top 72%
×4
+66ft-88ft

Overall

20805

Females

8067

F18-39

8067

25K→30K

15.5 - 18.6 mi

Top 72%
×9
+181ft-148ft

Overall

20890

Females

8201

F18-39

8201

30K→20M

18.6 - 20.0 mi

Top 66%
×5
+64ft-50ft

Overall

19167

Females

7369

F18-39

7369

20M→21M

20.0 - 21.0 mi

Top 63%
×8
+106ft-24ft

Overall

18341

Females

6980

F18-39

6980

21M→35K

21.0 - 21.8 mi

Top 73%
×7
+17ft-86ft

Overall

21134

Females

8502

F18-39

8502

35K→23M

21.8 - 23.0 mi

Top 65%
×5
+23ft-63ft

Overall

18798

Females

7372

F18-39

7372

23M→24M

23.0 - 24.0 mi

Top 68%
×6
+12ft-82ft

Overall

19693

Females

7899

F18-39

7899

24M→40K

24.0 - 24.9 mi

Top 62%
×1
+6ft-20ft

Overall

17987

Females

7035

F18-39

7035

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1
+13ft-16ft

Overall

15558

Females

5757

F18-39

5757

25.2M→FINISH

25.2 - 26.2 mi

Top 56%
×2
+22ft-21ft

Overall

16237

Females

6089

F18-39

6089

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1546*
Passed By
979
Net Change
-556
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19742
5K → 10K61200-824#19742#20566
10K → 15K55200-544#20566#21110
15K → 20K119200-120#21110#21230
20K → HALF2930-1#21230#21231
HALF → 25K14977+72#21231#21159
25K → 30K206*116+90#21159#21069
30K → 20M14615+131#21069#20938
20M → 21M1768+168#20938#20770
21M → 35K4557-12#20770#20782
35K → 23M13023+107#20782#20675
23M → 24M7928+51#20675#20624
24M → 40K11413+101#20624#20523
40K → 25.2M742+72#20523#20451
25.2M → FINISH16310+153#20451#20298
TOTALS1546*979-556

* 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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Activity Data

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