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BOSTON MARATHON 2025

Sarah Frost

Bib: 12095•F

OR

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Female)
#0 / 12228
Top 3%
Division (F18-39)
#0 / 5469
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:39
Rank: #7580
Start → 5K
21:39 | 6:58/mi
10K· 6.21 mi
42:44
Rank: #6994 (+586)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:53
Rank: #6707 (+287)
10K → 15K
21:09 | 6:48/mi
20K· 12.43 mi
1:24:59
Rank: #6302 (+405)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:29:31
Rank: #6211 (+91)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:45:54
Rank: #5877 (+334)
Half → 25K
16:23 | 6:45/mi
30K· 18.64 mi
2:07:15
Rank: #5384 (+493)
25K → 30K
21:21 | 6:52/mi
20M
2:16:46
Rank: #5256 (+128)
30K → 20M
9:31 | 7:00/mi
21M
2:24:01
Rank: #5077 (+179)
20M → 21M
7:15 | 7:15/mi
35K· 21.75 mi
2:28:59
Rank: #4979 (+98)
21M → 35K
4:58 | 6:38/mi
23M
2:37:33
Rank: #4780 (+199)
35K → 23M
8:34 | 6:51/mi
24M
2:44:17
Rank: #4683 (+97)
23M → 24M
6:44 | 6:44/mi
40K· 24.85 mi
2:50:03
Rank: #4559 (+124)
24M → 40K
5:46 | 6:45/mi
25.2M
2:52:19
Rank: #4424 (+135)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:59:01
Rank: #4356 (+68)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:31
Pace6:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:30
Pace6:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3021:396:5821:39
6:58
-
10K
6.21 mi11:10:3542:446:5321:05
6:47
-0:11
15K
9.32 mi11:31:441:03:536:5121:09
6:48
+0:01
20K
12.43 mi11:52:501:24:596:5021:06
6:47
-0:01
Half
13.11 mi11:57:221:29:316:504:32
6:39
-0:08
25K
15.53 mi12:13:451:45:546:4916:23
6:45
+0:06
30K
18.64 mi12:35:062:07:156:5021:21
6:52
+0:07
20M
20.00 mi12:44:372:16:466:509:31
7:00
+0:08
21M
21.00 mi12:51:522:24:016:517:15
7:15
+0:15
35K
21.75 mi12:56:502:28:596:514:58
6:38
-0:37
23M
23.00 mi13:05:242:37:336:518:34
6:51
+0:13
24M
24.00 mi13:12:082:44:176:516:44
6:44
-0:07
40K
24.85 mi13:17:542:50:036:515:46
6:45
+0:01
25.2M
25.20 mi13:20:102:52:196:502:16
6:34
-0:11
Finish
26.22 mi13:26:522:59:016:506:42
6:34
0:00

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

6:34 /mi

Average Pace

6:50 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:46

96% of race

Time at Steady Pace

7:15

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:49:3021:396:5821:39
6:58
#7580
10K
6.21 mi11:10:3542:446:5321:05
6:47
#6994
15K
9.32 mi11:31:441:03:536:5121:09
6:48
#6707
20K
12.43 mi11:52:501:24:596:5021:06
6:47
#6302
Half
13.11 mi11:57:221:29:316:504:32
6:39
#6211
25K
15.53 mi12:13:451:45:546:4916:23
6:45
#5877
30K
18.64 mi12:35:062:07:156:5021:21
6:52
#5384
20M
20.00 mi12:44:372:16:466:509:31
7:00
#5256
21M
21.00 mi12:51:522:24:016:517:15
7:15
#5077
35K
21.75 mi12:56:502:28:596:514:58
6:38
#4979
23M
23.00 mi13:05:242:37:336:518:34
6:51
#4780
24M
24.00 mi13:12:082:44:176:516:44
6:44
#4683
40K
24.85 mi13:17:542:50:036:515:46
6:45
#4559
25.2M
25.20 mi13:20:102:52:196:502:16
6:34
#4424
Finish
26.22 mi13:26:522:59:016:506:42
6:34
#4356
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 mi75808298296174(Top 22%)557(Top 5%)557(Top 10%)
10K6.21 mi3.10 mi6994+586689+140689+1406262(Top 22%)552(Top 5%)552(Top 10%)
15K9.32 mi3.11 mi6707+287640+49640+496174(Top 22%)557(Top 5%)557(Top 10%)
20K12.43 mi3.11 mi6302+405565+75565+755233(Top 18%)403(Top 3%)403(Top 7%)
Half13.11 mi0.68 mi6211+91549+16549+164893(Top 17%)341(Top 3%)341(Top 6%)
25K15.53 mi2.42 mi5877+334504+45504+454565(Top 16%)336(Top 3%)336(Top 6%)
30K18.64 mi3.11 mi5384+493434+70434+703915(Top 14%)298(Top 2%)298(Top 5%)
20M20.00 mi1.36 mi5256+128424+10424+104142(Top 15%)341(Top 3%)341(Top 6%)
21M21.00 mi1.00 mi5077+179400+24400+243417(Top 12%)275(Top 2%)275(Top 5%)
35K21.75 mi0.75 mi4979+98392+8392+83216(Top 11%)265(Top 2%)265(Top 5%)
23M23.00 mi1.25 mi4780+199371+21371+212948(Top 10%)246(Top 2%)246(Top 4%)
24M24.00 mi1.00 mi4683+97366+5366+53174(Top 11%)300(Top 2%)300(Top 5%)
40K24.85 mi0.85 mi4559+124359+7359+72631(Top 9%)230(Top 2%)230(Top 4%)
25.2M25.20 mi0.35 mi4424+135344+15344+15594(Top 2%)39(Top 0.3%)39(Top 0.7%)
Finish26.22 mi1.02 mi4356+68338+6338+63154(Top 11%)357(Top 3%)357(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6174

Females

557

F18-39

557

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6262

Females

552

F18-39

552

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6174

Females

557

F18-39

557

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5233

Females

403

F18-39

403

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4893

Females

341

F18-39

341

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4565

Females

336

F18-39

336

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3915

Females

298

F18-39

298

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4142

Females

341

F18-39

341

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3417

Females

275

F18-39

275

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3216

Females

265

F18-39

265

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2948

Females

246

F18-39

246

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3174

Females

300

F18-39

300

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2631

Females

230

F18-39

230

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

594

Females

39

F18-39

39

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3154

Females

357

F18-39

357

Passing Analysis

Category:
Athletes Passed
3396
Passed By
172
Net Change
+3224
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7580
5K → 10K61731+586#7580#6994
10K → 15K32235+287#6994#6707
15K → 20K4149+405#6707#6302
20K → Half954+91#6302#6211
Half → 25K3428+334#6211#5877
25K → 30K4963+493#5877#5384
30K → 20M14719+128#5384#5256
20M → 21M19011+179#5256#5077
21M → 35K1079+98#5077#4979
35K → 23M2056+199#4979#4780
23M → 24M11417+97#4780#4683
24M → 40K1284+124#4683#4559
40K → 25.2M1350+135#4559#4424
25.2M → Finish8416+68#4424#4356
TOTALS3396172+3224
📊

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