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BOSTON MARATHON 2025

Emma Clark

Bib: 20264•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 47%
Masters (Masters Women)
#0 / 6759
Top 35%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:47
Rank: #18712
Start → 5K
25:47 | 8:18/mi
10K· 6.21 mi
51:02
Rank: #18070 (+642)
5K → 10K
25:15 | 8:08/mi
15K· 9.32 mi
1:16:21
Rank: #17712 (+358)
10K → 15K
25:19 | 8:09/mi
20K· 12.43 mi
1:42:01
Rank: #17400 (+312)
15K → 20K
25:40 | 8:16/mi
Half· 13.11 mi
1:47:33
Rank: #17356 (+44)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:07:49
Rank: #17139 (+217)
Half → 25K
20:16 | 8:22/mi
30K· 18.64 mi
2:35:00
Rank: #16921 (+218)
25K → 30K
27:11 | 8:45/mi
20M
2:46:56
Rank: #16803 (+118)
30K → 20M
11:56 | 8:47/mi
21M
2:56:15
Rank: #16658 (+145)
20M → 21M
9:19 | 9:19/mi
35K· 21.75 mi
3:02:48
Rank: #16654 (+4)
21M → 35K
6:33 | 8:45/mi
23M
3:14:04
Rank: #16599 (+55)
35K → 23M
11:16 | 9:00/mi
24M
3:22:57
Rank: #16597 (+2)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
3:30:45
Rank: #16604 (-7)
24M → 40K
7:48 | 9:07/mi
25.2M
3:34:05
Rank: #16590 (+14)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:42:52
Rank: #16592 (-2)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:33
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:55:19
Pace8:48 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2225:478:1825:47
8:18
-
10K
6.21 mi11:43:3751:028:1325:15
8:08
-0:10
15K
9.32 mi12:08:561:16:218:1125:19
8:09
+0:01
20K
12.43 mi12:34:361:42:018:1325:40
8:16
+0:07
Half
13.11 mi12:40:081:47:338:125:32
8:07
-0:09
25K
15.53 mi13:00:242:07:498:1420:16
8:22
+0:15
30K
18.64 mi13:27:352:35:008:1927:11
8:45
+0:23
20M
20.00 mi13:39:312:46:568:2111:56
8:47
+0:02
21M
21.00 mi13:48:502:56:158:249:19
9:19
+0:32
35K
21.75 mi13:55:233:02:488:246:33
8:45
-0:34
23M
23.00 mi14:06:393:14:048:2611:16
9:00
+0:15
24M
24.00 mi14:15:323:22:578:278:53
8:53
-0:07
40K
24.85 mi14:23:203:30:458:297:48
9:07
+0:14
25.2M
25.20 mi14:26:403:34:058:303:20
9:40
+0:33
Finish
26.22 mi14:35:273:42:528:308:47
8:37
-1:03

Checkpoints & Pacing

📈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

8:07 /mi

Average Pace

8:30 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:09

86% of race

Time at Steady Pace

28:23

13% of race

Time at Slower Pace

3:20

1% of race

Average Pace: 8:30 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:18:2225:478:1825:47
8:18
#18712
10K
6.21 mi11:43:3751:028:1325:15
8:08
#18070
15K
9.32 mi12:08:561:16:218:1125:19
8:09
#17712
20K
12.43 mi12:34:361:42:018:1325:40
8:16
#17400
Half
13.11 mi12:40:081:47:338:125:32
8:07
#17356
25K
15.53 mi13:00:242:07:498:1420:16
8:22
#17139
30K
18.64 mi13:27:352:35:008:1927:11
8:45
#16921
20M
20.00 mi13:39:312:46:568:2111:56
8:47
#16803
21M
21.00 mi13:48:502:56:158:249:19
9:19
#16658
35K
21.75 mi13:55:233:02:488:246:33
8:45
#16654
23M
23.00 mi14:06:393:14:048:2611:16
9:00
#16599
24M
24.00 mi14:15:323:22:578:278:53
8:53
#16597
40K
24.85 mi14:23:203:30:458:297:48
9:07
#16604
25.2M
25.20 mi14:26:403:34:058:303:20
9:40
#16590
Finish
26.22 mi14:35:273:42:528:308:47
8:37
#16592
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi187126745674517086(Top 60%)5782(Top 47%)5782(Top 337%)
10K6.21 mi3.10 mi18070+6426373+3726373+37217406(Top 61%)5941(Top 49%)5941(Top 346%)
15K9.32 mi3.11 mi17712+3586150+2236150+22317086(Top 60%)5782(Top 47%)5782(Top 337%)
20K12.43 mi3.11 mi17400+3125973+1775973+17716717(Top 59%)5618(Top 46%)5618(Top 327%)
Half13.11 mi0.68 mi17356+445956+175956+1716743(Top 59%)5618(Top 46%)5618(Top 327%)
25K15.53 mi2.42 mi17139+2175849+1075849+10716302(Top 57%)5486(Top 45%)5486(Top 319%)
30K18.64 mi3.11 mi16921+2185766+835766+8316300(Top 57%)5633(Top 46%)5633(Top 328%)
20M20.00 mi1.36 mi16803+1185720+465720+4615584(Top 55%)5353(Top 44%)5353(Top 312%)
21M21.00 mi1.00 mi16658+1455674+465674+4615261(Top 54%)5325(Top 44%)5325(Top 310%)
35K21.75 mi0.75 mi16654+45694-205694-2017039(Top 60%)6360(Top 52%)6360(Top 370%)
23M23.00 mi1.25 mi16599+555694569416260(Top 57%)6034(Top 49%)6034(Top 351%)
24M24.00 mi1.00 mi16597+25715-215715-2116771(Top 59%)6361(Top 52%)6361(Top 370%)
40K24.85 mi0.85 mi16604-75751-365751-3616987(Top 60%)6570(Top 54%)6570(Top 382%)
25.2M25.20 mi0.35 mi16590+145753-25753-215502(Top 55%)5826(Top 48%)5826(Top 339%)
Finish26.22 mi1.02 mi16592-25782-295782-2916976(Top 60%)6544(Top 54%)6544(Top 381%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

17086

Females

5782

F40-44

5782

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

17406

Females

5941

F40-44

5941

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

17086

Females

5782

F40-44

5782

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16717

Females

5618

F40-44

5618

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16743

Females

5618

F40-44

5618

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

16302

Females

5486

F40-44

5486

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

16300

Females

5633

F40-44

5633

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

15584

Females

5353

F40-44

5353

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

15261

Females

5325

F40-44

5325

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17039

Females

6360

F40-44

6360

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16260

Females

6034

F40-44

6034

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16771

Females

6361

F40-44

6361

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16987

Females

6570

F40-44

6570

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15502

Females

5826

F40-44

5826

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16976

Females

6544

F40-44

6544

Passing Analysis

Category:
Athletes Passed
2946
Passed By
826
Net Change
+2120
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18712
5K → 10K71371+642#18712#18070
10K → 15K41052+358#18070#17712
15K → 20K35846+312#17712#17400
20K → Half5612+44#17400#17356
Half → 25K27760+217#17356#17139
25K → 30K326108+218#17139#16921
30K → 20M15234+118#16921#16803
20M → 21M18439+145#16803#16658
21M → 35K6864+4#16658#16654
35K → 23M13176+55#16654#16599
23M → 24M7977+2#16599#16597
24M → 40K7380-7#16597#16604
40K → 25.2M3723+14#16604#16590
25.2M → Finish8284-2#16590#16592
TOTALS2946826+2120
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing