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BOSTON MARATHON 2025

Sarah Clark

Bib: 8576•F

OH

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:28
Rank: #7158
Start → 5K
21:28 | 6:55/mi
10K· 6.21 mi
42:41
Rank: #6935 (+223)
5K → 10K
21:13 | 6:50/mi
15K· 9.32 mi
1:03:42
Rank: #6522 (+413)
10K → 15K
21:01 | 6:46/mi
20K· 12.43 mi
1:24:49
Rank: #6175 (+347)
15K → 20K
21:07 | 6:48/mi
Half· 13.11 mi
1:29:26
Rank: #6146 (+29)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:03
Rank: #5952 (+194)
Half → 25K
16:37 | 6:51/mi
30K· 18.64 mi
2:07:48
Rank: #5642 (+310)
25K → 30K
21:45 | 7:00/mi
20M
2:17:24
Rank: #5531 (+111)
30K → 20M
9:36 | 7:04/mi
21M
2:24:42
Rank: #5359 (+172)
20M → 21M
7:18 | 7:18/mi
35K· 21.75 mi
2:30:09
Rank: #5412 (-53)
21M → 35K
5:27 | 7:18/mi
23M
2:39:14
Rank: #5345 (+67)
35K → 23M
9:05 | 7:15/mi
24M
2:46:18
Rank: #5297 (+48)
23M → 24M
7:04 | 7:04/mi
40K· 24.85 mi
2:52:28
Rank: #5232 (+65)
24M → 40K
6:10 | 7:13/mi
25.2M
2:55:16
Rank: #5229 (+3)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:02:32
Rank: #5224 (+5)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:26
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:33:06
Pace7:06 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5521:286:5521:28
6:55
-
10K
6.21 mi11:08:0842:416:5221:13
6:50
-0:05
15K
9.32 mi11:29:091:03:426:5021:01
6:46
-0:04
20K
12.43 mi11:50:161:24:496:4921:07
6:48
+0:02
Half
13.11 mi11:54:531:29:266:494:37
6:46
-0:02
25K
15.53 mi12:11:301:46:036:5016:37
6:51
+0:05
30K
18.64 mi12:33:152:07:486:5121:45
7:00
+0:09
20M
20.00 mi12:42:512:17:246:529:36
7:04
+0:04
21M
21.00 mi12:50:092:24:426:537:18
7:18
+0:14
35K
21.75 mi12:55:362:30:096:545:27
7:18
0:00
23M
23.00 mi13:04:412:39:146:559:05
7:15
-0:03
24M
24.00 mi13:11:452:46:186:567:04
7:04
-0:11
40K
24.85 mi13:17:552:52:286:566:10
7:13
+0:09
25.2M
25.20 mi13:20:432:55:166:572:48
8:07
+0:54
Finish
26.22 mi13:27:593:02:326:587:16
7:08
-0:59

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

6:46 /mi

Average Pace

6:58 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:44

98% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

2:48

2% of race

Average Pace: 6:58 /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 mi10:46:5521:286:5521:28
6:55
#7158
10K
6.21 mi11:08:0842:416:5221:13
6:50
#6935
15K
9.32 mi11:29:091:03:426:5021:01
6:46
#6522
20K
12.43 mi11:50:161:24:496:4921:07
6:48
#6175
Half
13.11 mi11:54:531:29:266:494:37
6:46
#6146
25K
15.53 mi12:11:301:46:036:5016:37
6:51
#5952
30K
18.64 mi12:33:152:07:486:5121:45
7:00
#5642
20M
20.00 mi12:42:512:17:246:529:36
7:04
#5531
21M
21.00 mi12:50:092:24:426:537:18
7:18
#5359
35K
21.75 mi12:55:362:30:096:545:27
7:18
#5412
23M
23.00 mi13:04:412:39:146:559:05
7:15
#5345
24M
24.00 mi13:11:452:46:186:567:04
7:04
#5297
40K
24.85 mi13:17:552:52:286:566:10
7:13
#5232
25.2M
25.20 mi13:20:432:55:166:572:48
8:07
#5229
Finish
26.22 mi13:27:593:02:326:587:16
7:08
#5224
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi71587207205756(Top 20%)496(Top 4%)496(Top 9%)
10K6.21 mi3.10 mi6935+223673+47673+476709(Top 24%)642(Top 5%)642(Top 12%)
15K9.32 mi3.11 mi6522+413606+67606+675756(Top 20%)496(Top 4%)496(Top 9%)
20K12.43 mi3.11 mi6175+347536+70536+705284(Top 19%)416(Top 3%)416(Top 8%)
Half13.11 mi0.68 mi6146+29534+2534+25929(Top 21%)527(Top 4%)527(Top 10%)
25K15.53 mi2.42 mi5952+194521+13521+135333(Top 19%)452(Top 4%)452(Top 8%)
30K18.64 mi3.11 mi5642+310476+45476+454698(Top 17%)403(Top 3%)403(Top 7%)
20M20.00 mi1.36 mi5531+111463+13463+134502(Top 16%)396(Top 3%)396(Top 7%)
21M21.00 mi1.00 mi5359+172448+15448+153584(Top 13%)300(Top 2%)300(Top 5%)
35K21.75 mi0.75 mi5412-53463-15463-157220(Top 25%)1397(Top 11%)1397(Top 26%)
23M23.00 mi1.25 mi5345+67460+3460+35225(Top 18%)739(Top 6%)739(Top 14%)
24M24.00 mi1.00 mi5297+48463-3463-35048(Top 18%)732(Top 6%)732(Top 13%)
40K24.85 mi0.85 mi5232+654634635137(Top 18%)820(Top 7%)820(Top 15%)
25.2M25.20 mi0.35 mi5229+3468-5468-56626(Top 23%)1454(Top 12%)1454(Top 27%)
Finish26.22 mi1.02 mi5224+5476-8476-86585(Top 23%)1471(Top 12%)1471(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5756

Females

496

F18-39

496

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6709

Females

642

F18-39

642

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5756

Females

496

F18-39

496

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5284

Females

416

F18-39

416

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5929

Females

527

F18-39

527

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5333

Females

452

F18-39

452

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4698

Females

403

F18-39

403

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4502

Females

396

F18-39

396

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3584

Females

300

F18-39

300

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7220

Females

1397

F18-39

1397

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5225

Females

739

F18-39

739

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5048

Females

732

F18-39

732

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5137

Females

820

F18-39

820

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6626

Females

1454

F18-39

1454

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6585

Females

1471

F18-39

1471

Passing Analysis

Category:
Athletes Passed
2409
Passed By
475
Net Change
+1934
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7158
5K → 10K32198+223#7158#6935
10K → 15K43623+413#6935#6522
15K → 20K3558+347#6522#6175
20K → Half4112+29#6175#6146
Half → 25K22531+194#6146#5952
25K → 30K35242+310#5952#5642
30K → 20M12716+111#5642#5531
20M → 21M1808+172#5531#5359
21M → 35K3588-53#5359#5412
35K → 23M11245+67#5412#5345
23M → 24M7628+48#5345#5297
24M → 40K8217+65#5297#5232
40K → 25.2M2219+3#5232#5229
25.2M → Finish4540+5#5229#5224
TOTALS2409475+1934
📊

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