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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Emily Sheahan

Bib: 21355 •F •Age: N/A

OR

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 41%
Masters (Masters Women)
#0 / 6862
Top 26%
Age Group (F50-54)
#0 / 1233
Top 20%
Race Day Weather
51°/41°F
overcast clouds

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
23:35
3.11 mi
Rank: #13577
Start → 5K
23:35 | 7:36/mi
10K
47:39
6.21 mi
Rank: #14334 (-757)
5K → 10K
24:04 | 7:45/mi
15K
1:12:04
9.32 mi
Rank: #14821 (-487)
10K → 15K
24:25 | 7:52/mi
20K
1:37:04
12.43 mi
Rank: #15267 (-446)
15K → 20K
25:00 | 8:03/mi
HALF
1:42:28
13.11 mi
Rank: #15317 (-50)
20K → HALF
5:24 | 7:56/mi
25K
2:02:13
15.53 mi
Rank: #15499 (-182)
HALF → 25K
19:45 | 8:09/mi
30K
2:28:00
18.64 mi
Rank: #15512 (-13)
25K → 30K
25:47 | 8:18/mi
20M
2:39:25
20.00 mi
Rank: #15523 (-11)
30K → 20M
11:25 | 8:25/mi
21M
2:48:07
21.00 mi
Rank: #15413 (+110)
20M → 21M
8:42 | 8:42/mi
35K
2:54:11
21.75 mi
Rank: #15377 (+36)
21M → 35K
6:04 | 8:07/mi
23M
3:04:50
23.00 mi
Rank: #15403 (-26)
35K → 23M
10:39 | 8:31/mi
24M
3:13:04
24.00 mi
Rank: #15414 (-11)
23M → 24M
8:14 | 8:14/mi
40K
3:20:10
24.85 mi
Rank: #15351 (+63)
24M → 40K
7:06 | 8:19/mi
25.2M
3:23:16
25.20 mi
Rank: #15341 (+10)
40K → 25.2M
3:06 | 9:00/mi
FINISH
3:31:27
26.22 mi
Rank: #15349 (-8)
25.2M → FINISH
8:11 | 8:02/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:42:28
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:48:59
Pace8:19 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4323:357:3623:35
7:36
-
10K
6.21 mi11:48:4747:397:4124:04
7:45
+0:09
15K
9.32 mi12:13:121:12:047:4424:25
7:52
+0:07
20K
12.43 mi12:38:121:37:047:4925:00
8:03
+0:11
HALF
13.11 mi12:43:361:42:287:495:24
7:56
-0:07
25K
15.53 mi13:03:212:02:137:5319:45
8:09
+0:13
30K
18.64 mi13:29:082:28:007:5725:47
8:18
+0:09
20M
20.00 mi13:40:332:39:257:5911:25
8:25
+0:07
21M
21.00 mi13:49:152:48:078:018:42
8:42
+0:17
35K
21.75 mi13:55:192:54:118:016:04
8:07
-0:35
23M
23.00 mi14:05:583:04:508:0310:39
8:31
+0:24
24M
24.00 mi14:14:123:13:048:038:14
8:14
-0:17
40K
24.85 mi14:21:183:20:108:047:06
8:19
+0:05
25.2M
25.20 mi14:24:243:23:168:043:06
9:00
+0:41
FINISH
26.22 mi14:32:353:31:278:058:11
8:02
-0:58

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

7:36 /mi

Average Pace

8:04 /mi

Slowest Pace

9:00 /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

2:57:35

84% of race

Time at Steady Pace

30:46

15% of race

Time at Slower Pace

3:06

1% of race

Average Pace: 8:04 /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 mi11:24:4323:357:3623:35
7:36
#13577
10K
6.21 mi11:48:4747:397:4124:04
7:45
#14334
15K
9.32 mi12:13:121:12:047:4424:25
7:52
#14821
20K
12.43 mi12:38:121:37:047:4925:00
8:03
#15267
HALF
13.11 mi12:43:361:42:287:495:24
7:56
#15317
25K
15.53 mi13:03:212:02:137:5319:45
8:09
#15499
30K
18.64 mi13:29:082:28:007:5725:47
8:18
#15512
20M
20.00 mi13:40:332:39:257:5911:25
8:25
#15523
21M
21.00 mi13:49:152:48:078:018:42
8:42
#15413
35K
21.75 mi13:55:192:54:118:016:04
8:07
#15377
23M
23.00 mi14:05:583:04:508:0310:39
8:31
#15403
24M
24.00 mi14:14:123:13:048:038:14
8:14
#15414
40K
24.85 mi14:21:183:20:108:047:06
8:19
#15351
25.2M
25.20 mi14:24:243:23:168:043:06
9:00
#15341
FINISH
26.22 mi14:32:353:31:278:058:11
8:02
#15349
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi135773826382615840(Top 55%)5252(Top 42%)5252(Top 426%)
10K6.21 mi3.10 mi14334-7574296-4704296-47015154(Top 52%)4805(Top 38%)4805(Top 390%)
15K9.32 mi3.11 mi14821-4874623-3274623-32715840(Top 55%)5252(Top 42%)5252(Top 426%)
20K12.43 mi3.11 mi15267-4464906-2834906-28316468(Top 57%)5632(Top 45%)5632(Top 457%)
HALF13.11 mi0.68 mi15317-504937-314937-3116558(Top 57%)5650(Top 45%)5650(Top 458%)
25K15.53 mi2.42 mi15499-1825070-1335070-13316432(Top 57%)5666(Top 45%)5666(Top 460%)
30K18.64 mi3.11 mi15512-135107-375107-3715617(Top 54%)5314(Top 42%)5314(Top 431%)
20M20.00 mi1.36 mi15523-115139-325139-3215616(Top 54%)5426(Top 43%)5426(Top 440%)
21M21.00 mi1.00 mi15413+1105097+425097+4214404(Top 50%)4803(Top 38%)4803(Top 390%)
35K21.75 mi0.75 mi15377+365090+75090+715246(Top 53%)5319(Top 42%)5319(Top 431%)
23M23.00 mi1.25 mi15403-265131-415131-4115785(Top 54%)5716(Top 45%)5716(Top 464%)
24M24.00 mi1.00 mi15414-115156-255156-2515304(Top 53%)5502(Top 44%)5502(Top 446%)
40K24.85 mi0.85 mi15351+635139+175139+1714510(Top 50%)5166(Top 41%)5166(Top 419%)
25.2M25.20 mi0.35 mi15341+105141-25141-214715(Top 51%)5284(Top 42%)5284(Top 429%)
FINISH26.22 mi1.02 mi15349-85160-195160-1915401(Top 53%)5637(Top 45%)5637(Top 457%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21
+97ft-345ft

Overall

15840

Females

5252

F50-54

5252

5K→10K

3.1 - 6.2 mi

Top 52%
×5
+79ft-138ft

Overall

15154

Females

4805

F50-54

4805

10K→15K

6.2 - 9.3 mi

Top 55%
×3
+67ft-78ft

Overall

15840

Females

5252

F50-54

5252

15K→20K

9.3 - 12.4 mi

Top 57%
×5
+106ft-86ft

Overall

16468

Females

5632

F50-54

5632

20K→HALF

12.4 - 13.1 mi

Top 57%
×2
+19ft-37ft

Overall

16558

Females

5650

F50-54

5650

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16432

Females

5666

F50-54

5666

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15617

Females

5314

F50-54

5314

30K→20M

18.6 - 20.0 mi

Top 54%
×5
+64ft-50ft

Overall

15616

Females

5426

F50-54

5426

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14404

Females

4803

F50-54

4803

21M→35K

21.0 - 21.8 mi

Top 53%
×7
+17ft-86ft

Overall

15246

Females

5319

F50-54

5319

35K→23M

21.8 - 23.0 mi

Top 54%
×5
+23ft-63ft

Overall

15785

Females

5716

F50-54

5716

23M→24M

23.0 - 24.0 mi

Top 53%
×6
+12ft-82ft

Overall

15304

Females

5502

F50-54

5502

24M→40K

24.0 - 24.9 mi

Top 50%
×1
+6ft-20ft

Overall

14510

Females

5166

F50-54

5166

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1
+13ft-16ft

Overall

14715

Females

5284

F50-54

5284

25.2M→FINISH

25.2 - 26.2 mi

Top 53%
×2
+22ft-21ft

Overall

15401

Females

5637

F50-54

5637

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1207
Passed By
1568
Net Change
-1772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13577
5K → 10K86200-757#13577#14334
10K → 15K84200-487#14334#14821
15K → 20K73200-446#14821#15267
20K → HALF1767-50#15267#15317
HALF → 25K91200-182#15317#15499
25K → 30K192200-13#15499#15512
30K → 20M99110-11#15512#15523
20M → 21M14838+110#15523#15413
21M → 35K8044+36#15413#15377
35K → 23M80106-26#15377#15403
23M → 24M6576-11#15403#15414
24M → 40K10037+63#15414#15351
40K → 25.2M3424+10#15351#15341
25.2M → FINISH5866-8#15341#15349
TOTALS12071568-1772
📊

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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