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BOSTON MARATHON 2025

Claire Ewen

Bib: 26151•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:33
Rank: #23202
Start → 5K
28:33 | 9:11/mi
10K· 6.21 mi
55:41
Rank: #22266 (+936)
5K → 10K
27:08 | 8:44/mi
15K· 9.32 mi
1:22:10
Rank: #21349 (+917)
10K → 15K
26:29 | 8:31/mi
20K· 12.43 mi
1:49:43
Rank: #21059 (+290)
15K → 20K
27:33 | 8:52/mi
Half· 13.11 mi
1:55:49
Rank: #21110 (-51)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:18:20
Rank: #21128 (-18)
Half → 25K
22:31 | 9:17/mi
30K· 18.64 mi
2:47:17
Rank: #20743 (+385)
25K → 30K
28:57 | 9:19/mi
20M
3:00:16
Rank: #20618 (+125)
30K → 20M
12:59 | 9:33/mi
21M
3:10:01
Rank: #20424 (+194)
20M → 21M
9:45 | 9:45/mi
35K· 21.75 mi
3:16:48
Rank: #20339 (+85)
21M → 35K
6:47 | 9:04/mi
23M
3:28:39
Rank: #20242 (+97)
35K → 23M
11:51 | 9:28/mi
24M
3:37:48
Rank: #20172 (+70)
23M → 24M
9:09 | 9:09/mi
40K· 24.85 mi
3:45:38
Rank: #20052 (+120)
24M → 40K
7:50 | 9:10/mi
25.2M
3:49:14
Rank: #20048 (+4)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:57:54
Rank: #19915 (+133)
25.2M → Finish
8:40 | 8:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:49
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time2:02:05
Pace9:19 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:1828:339:1128:33
9:11
-
10K
6.21 mi12:11:2655:418:5827:08
8:44
-0:27
15K
9.32 mi12:37:551:22:108:4926:29
8:31
-0:13
20K
12.43 mi13:05:281:49:438:5027:33
8:52
+0:21
Half
13.11 mi13:11:341:55:498:506:06
8:56
+0:04
25K
15.53 mi13:34:052:18:208:5422:31
9:17
+0:21
30K
18.64 mi14:03:022:47:178:5828:57
9:19
+0:02
20M
20.00 mi14:16:013:00:169:0112:59
9:33
+0:14
21M
21.00 mi14:25:463:10:019:039:45
9:45
+0:12
35K
21.75 mi14:32:333:16:489:036:47
9:04
-0:41
23M
23.00 mi14:44:243:28:399:0411:51
9:28
+0:24
24M
24.00 mi14:53:333:37:489:059:09
9:09
-0:19
40K
24.85 mi15:01:233:45:389:057:50
9:10
+0:01
25.2M
25.20 mi15:04:593:49:149:063:36
10:26
+1:16
Finish
26.22 mi15:13:393:57:549:058:40
8:30
-1:56

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

8:30 /mi

Average Pace

9:05 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:50

38% of race

Time at Steady Pace

1:49:53

46% of race

Time at Slower Pace

38:11

16% of race

Average Pace: 9:04 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:44:1828:339:1128:33
9:11
#23202
10K
6.21 mi12:11:2655:418:5827:08
8:44
#22266
15K
9.32 mi12:37:551:22:108:4926:29
8:31
#21349
20K
12.43 mi13:05:281:49:438:5027:33
8:52
#21059
Half
13.11 mi13:11:341:55:498:506:06
8:56
#21110
25K
15.53 mi13:34:052:18:208:5422:31
9:17
#21128
30K
18.64 mi14:03:022:47:178:5828:57
9:19
#20743
20M
20.00 mi14:16:013:00:169:0112:59
9:33
#20618
21M
21.00 mi14:25:463:10:019:039:45
9:45
#20424
35K
21.75 mi14:32:333:16:489:036:47
9:04
#20339
23M
23.00 mi14:44:243:28:399:0411:51
9:28
#20242
24M
24.00 mi14:53:333:37:489:059:09
9:09
#20172
40K
24.85 mi15:01:233:45:389:057:50
9:10
#20052
25.2M
25.20 mi15:04:593:49:149:063:36
10:26
#20048
Finish
26.22 mi15:13:393:57:549:058:40
8:30
#19915
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi232029275927519485(Top 69%)7164(Top 59%)7164(Top 131%)
10K6.21 mi3.10 mi22266+9368766+5098766+50921081(Top 74%)8064(Top 66%)8064(Top 147%)
15K9.32 mi3.11 mi21349+9178217+5498217+54919485(Top 69%)7164(Top 59%)7164(Top 131%)
20K12.43 mi3.11 mi21059+2908062+1558062+15520320(Top 72%)7663(Top 63%)7663(Top 140%)
Half13.11 mi0.68 mi21110-518086-248086-2421576(Top 76%)8345(Top 68%)8345(Top 153%)
25K15.53 mi2.42 mi21128-188112-268112-2621130(Top 74%)8164(Top 67%)8164(Top 149%)
30K18.64 mi3.11 mi20743+3857951+1617951+16119202(Top 68%)7230(Top 59%)7230(Top 132%)
20M20.00 mi1.36 mi20618+1257899+527899+5219432(Top 68%)7487(Top 61%)7487(Top 137%)
21M21.00 mi1.00 mi20424+1947811+887811+8817295(Top 61%)6435(Top 53%)6435(Top 118%)
35K21.75 mi0.75 mi20339+857780+317780+3118604(Top 65%)7258(Top 59%)7258(Top 133%)
23M23.00 mi1.25 mi20242+977755+257755+2518544(Top 65%)7260(Top 59%)7260(Top 133%)
24M24.00 mi1.00 mi20172+707737+187737+1818140(Top 64%)7114(Top 58%)7114(Top 130%)
40K24.85 mi0.85 mi20052+1207686+517686+5117208(Top 61%)6703(Top 55%)6703(Top 123%)
25.2M25.20 mi0.35 mi20048+47697-117697-1118836(Top 66%)7547(Top 62%)7547(Top 138%)
Finish26.22 mi1.02 mi19915+1337638+597638+5916297(Top 57%)6201(Top 51%)6201(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19485

Females

7164

F18-39

7164

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21081

Females

8064

F18-39

8064

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19485

Females

7164

F18-39

7164

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

20320

Females

7663

F18-39

7663

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

21576

Females

8345

F18-39

8345

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

21130

Females

8164

F18-39

8164

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19202

Females

7230

F18-39

7230

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

19432

Females

7487

F18-39

7487

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17295

Females

6435

F18-39

6435

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

18604

Females

7258

F18-39

7258

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18544

Females

7260

F18-39

7260

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18140

Females

7114

F18-39

7114

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17208

Females

6703

F18-39

6703

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18836

Females

7547

F18-39

7547

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

16297

Females

6201

F18-39

6201

Passing Analysis

Category:
Athletes Passed
3815
Passed By
528
Net Change
+3287
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23202
5K → 10K95721+936#23202#22266
10K → 15K9225+917#22266#21349
15K → 20K35363+290#21349#21059
20K → Half1970-51#21059#21110
Half → 25K139157-18#21110#21128
25K → 30K42237+385#21128#20743
30K → 20M16641+125#20743#20618
20M → 21M2039+194#20618#20424
21M → 35K9914+85#20424#20339
35K → 23M13841+97#20339#20242
23M → 24M9121+70#20242#20172
24M → 40K1255+120#20172#20052
40K → 25.2M3026+4#20052#20048
25.2M → Finish15118+133#20048#19915
TOTALS3815528+3287
📊

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