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BOSTON MARATHON 2025

Clare Mathias

Bib: 28446•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
32:39
Rank: #26766
Start → 5K
32:39 | 10:31/mi
10K· 6.21 mi
1:05:24
Rank: #26535 (+231)
5K → 10K
32:45 | 10:32/mi
15K· 9.32 mi
1:38:07
Rank: #26332 (+203)
10K → 15K
32:43 | 10:32/mi
20K· 12.43 mi
2:10:54
Rank: #26033 (+299)
15K → 20K
32:47 | 10:33/mi
Half· 13.11 mi
2:17:56
Rank: #25993 (+40)
20K → Half
7:02 | 10:19/mi
25K· 15.53 mi
2:43:36
Rank: #25741 (+252)
Half → 25K
25:40 | 10:35/mi
30K· 18.64 mi
3:17:25
Rank: #25397 (+344)
25K → 30K
33:49 | 10:53/mi
20M
3:31:42
Rank: #25220 (+177)
30K → 20M
14:17 | 10:31/mi
21M
3:43:24
Rank: #25122 (+98)
20M → 21M
11:42 | 11:42/mi
35K· 21.75 mi
3:51:42
Rank: #25104 (+18)
21M → 35K
8:18 | 11:06/mi
23M
4:06:37
Rank: #25108 (-4)
35K → 23M
14:55 | 11:55/mi
24M
4:17:52
Rank: #25076 (+32)
23M → 24M
11:15 | 11:15/mi
40K· 24.85 mi
4:27:33
Rank: #25048 (+28)
24M → 40K
9:41 | 11:20/mi
25.2M
4:31:40
Rank: #25018 (+30)
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
4:42:29
Rank: #25029 (-11)
25.2M → Finish
10:49 | 10:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:56
Pace10:31 /mi
2nd Half
Distance13.11 mi
Time2:24:33
Pace11:02 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1832:3910:3132:39
10:31
-
10K
6.21 mi12:26:031:05:2410:3232:45
10:32
+0:01
15K
9.32 mi12:58:461:38:0710:3232:43
10:32
0:00
20K
12.43 mi13:31:332:10:5410:3232:47
10:33
+0:01
Half
13.11 mi13:38:352:17:5610:317:02
10:19
-0:14
25K
15.53 mi14:04:152:43:3610:3225:40
10:35
+0:16
30K
18.64 mi14:38:043:17:2510:3533:49
10:53
+0:18
20M
20.00 mi14:52:213:31:4210:3514:17
10:31
-0:22
21M
21.00 mi15:04:033:43:2410:3811:42
11:42
+1:11
35K
21.75 mi15:12:213:51:4210:398:18
11:06
-0:36
23M
23.00 mi15:27:164:06:3710:4314:55
11:55
+0:49
24M
24.00 mi15:38:314:17:5210:4511:15
11:15
-0:40
40K
24.85 mi15:48:124:27:3310:469:41
11:20
+0:05
25.2M
25.20 mi15:52:194:31:4010:474:07
11:56
+0:36
Finish
26.22 mi16:03:084:42:2910:4710:49
10:37
-1:19

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

10:19 /mi

Average Pace

10:47 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:11:45

89% of race

Time at Steady Pace

30:44

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:46 /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 mi11:53:1832:3910:3132:39
10:31
#26766
10K
6.21 mi12:26:031:05:2410:3232:45
10:32
#26535
15K
9.32 mi12:58:461:38:0710:3232:43
10:32
#26332
20K
12.43 mi13:31:332:10:5410:3232:47
10:33
#26033
Half
13.11 mi13:38:352:17:5610:317:02
10:19
#25993
25K
15.53 mi14:04:152:43:3610:3225:40
10:35
#25741
30K
18.64 mi14:38:043:17:2510:3533:49
10:53
#25397
20M
20.00 mi14:52:213:31:4210:3514:17
10:31
#25220
21M
21.00 mi15:04:033:43:2410:3811:42
11:42
#25122
35K
21.75 mi15:12:213:51:4210:398:18
11:06
#25104
23M
23.00 mi15:27:164:06:3710:4314:55
11:55
#25108
24M
24.00 mi15:38:314:17:5210:4511:15
11:15
#25076
40K
24.85 mi15:48:124:27:3310:469:41
11:20
#25048
25.2M
25.20 mi15:52:194:31:4010:474:07
11:56
#25018
Finish
26.22 mi16:03:084:42:2910:4710:49
10:37
#25029
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26766111961119625992(Top 92%)10784(Top 88%)10784(Top 197%)
10K6.21 mi3.10 mi26535+23111069+12711069+12726336(Top 93%)10976(Top 90%)10976(Top 201%)
15K9.32 mi3.11 mi26332+20310969+10010969+10025992(Top 92%)10784(Top 88%)10784(Top 197%)
20K12.43 mi3.11 mi26033+29910806+16310806+16325274(Top 89%)10416(Top 85%)10416(Top 190%)
Half13.11 mi0.68 mi25993+4010787+1910787+1925437(Top 90%)10509(Top 86%)10509(Top 192%)
25K15.53 mi2.42 mi25741+25210659+12810659+12824520(Top 86%)10031(Top 82%)10031(Top 183%)
30K18.64 mi3.11 mi25397+34410503+15610503+15623775(Top 84%)9745(Top 80%)9745(Top 178%)
20M20.00 mi1.36 mi25220+17710421+8210421+8222427(Top 79%)9130(Top 75%)9130(Top 167%)
21M21.00 mi1.00 mi25122+9810374+4710374+4723006(Top 81%)9507(Top 78%)9507(Top 174%)
35K21.75 mi0.75 mi25104+1810377-310377-324387(Top 86%)10271(Top 84%)10271(Top 188%)
23M23.00 mi1.25 mi25108-410390-1310390-1324981(Top 88%)10591(Top 87%)10591(Top 194%)
24M24.00 mi1.00 mi25076+3210380+1010380+1024463(Top 86%)10359(Top 85%)10359(Top 189%)
40K24.85 mi0.85 mi25048+2810377+310377+323792(Top 84%)10074(Top 82%)10074(Top 184%)
25.2M25.20 mi0.35 mi25018+3010364+1310364+1323042(Top 81%)9685(Top 79%)9685(Top 177%)
Finish26.22 mi1.02 mi25029-1110372-810372-824512(Top 86%)10413(Top 85%)10413(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

25992

Females

10784

F18-39

10784

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26336

Females

10976

F18-39

10976

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

25992

Females

10784

F18-39

10784

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

25274

Females

10416

F18-39

10416

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25437

Females

10509

F18-39

10509

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24520

Females

10031

F18-39

10031

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

23775

Females

9745

F18-39

9745

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22427

Females

9130

F18-39

9130

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

23006

Females

9507

F18-39

9507

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24387

Females

10271

F18-39

10271

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

24981

Females

10591

F18-39

10591

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24463

Females

10359

F18-39

10359

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23792

Females

10074

F18-39

10074

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23042

Females

9685

F18-39

9685

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24512

Females

10413

F18-39

10413

Passing Analysis

Category:
Athletes Passed
2028
Passed By
291
Net Change
+1737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26766
5K → 10K30978+231#26766#26535
10K → 15K24441+203#26535#26332
15K → 20K3078+299#26332#26033
20K → Half466+40#26033#25993
Half → 25K2597+252#25993#25741
25K → 30K3517+344#25741#25397
30K → 20M1814+177#25397#25220
20M → 21M11012+98#25220#25122
21M → 35K3618+18#25122#25104
35K → 23M3640-4#25104#25108
23M → 24M5018+32#25108#25076
24M → 40K5123+28#25076#25048
40K → 25.2M344+30#25048#25018
25.2M → Finish1425-11#25018#25029
TOTALS2028291+1737
📊

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