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BOSTON MARATHON 2025

Roberta Biihrer Collar

Bib: 9846•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 17%
Gender (Female)
#0 / 12228
Top 3%
Division (F18-39)
#0 / 5469
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:31
Rank: #7267
Start → 5K
21:31 | 6:56/mi
10K· 6.21 mi
42:33
Rank: #6743 (+524)
5K → 10K
21:02 | 6:46/mi
15K· 9.32 mi
1:03:29
Rank: #6309 (+434)
10K → 15K
20:56 | 6:44/mi
20K· 12.43 mi
1:24:33
Rank: #5974 (+335)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:29:04
Rank: #5903 (+71)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:45:36
Rank: #5703 (+200)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:07:10
Rank: #5348 (+355)
25K → 30K
21:34 | 6:56/mi
20M
2:16:36
Rank: #5185 (+163)
30K → 20M
9:26 | 6:57/mi
21M
2:24:05
Rank: #5107 (+78)
20M → 21M
7:29 | 7:29/mi
35K· 21.75 mi
2:29:10
Rank: #5060 (+47)
21M → 35K
5:05 | 6:48/mi
23M
2:37:57
Rank: #4953 (+107)
35K → 23M
8:47 | 7:01/mi
24M
2:44:48
Rank: #4863 (+90)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:50:49
Rank: #4812 (+51)
24M → 40K
6:01 | 7:02/mi
25.2M
2:53:33
Rank: #4820 (-8)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:00:29
Rank: #4796 (+24)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:04
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:31:25
Pace6:58 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0121:316:5621:31
6:56
-
10K
6.21 mi11:09:0342:336:5121:02
6:46
-0:10
15K
9.32 mi11:29:591:03:296:4920:56
6:44
-0:02
20K
12.43 mi11:51:031:24:336:4821:04
6:47
+0:03
Half
13.11 mi11:55:341:29:046:484:31
6:37
-0:10
25K
15.53 mi12:12:061:45:366:4816:32
6:49
+0:12
30K
18.64 mi12:33:402:07:106:4921:34
6:56
+0:07
20M
20.00 mi12:43:062:16:366:509:26
6:57
+0:01
21M
21.00 mi12:50:352:24:056:527:29
7:29
+0:32
35K
21.75 mi12:55:402:29:106:525:05
6:48
-0:41
23M
23.00 mi13:04:272:37:576:528:47
7:01
+0:13
24M
24.00 mi13:11:182:44:486:526:51
6:51
-0:10
40K
24.85 mi13:17:192:50:496:526:01
7:02
+0:11
25.2M
25.20 mi13:20:032:53:336:532:44
7:56
+0:54
Finish
26.22 mi13:26:593:00:296:536:56
6:48
-1:08

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

6:37 /mi

Average Pace

6:53 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:16

94% of race

Time at Steady Pace

7:29

4% of race

Time at Slower Pace

2:44

2% of race

Average Pace: 6:53 /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 mi10:48:0121:316:5621:31
6:56
#7267
10K
6.21 mi11:09:0342:336:5121:02
6:46
#6743
15K
9.32 mi11:29:591:03:296:4920:56
6:44
#6309
20K
12.43 mi11:51:031:24:336:4821:04
6:47
#5974
Half
13.11 mi11:55:341:29:046:484:31
6:37
#5903
25K
15.53 mi12:12:061:45:366:4816:32
6:49
#5703
30K
18.64 mi12:33:402:07:106:4921:34
6:56
#5348
20M
20.00 mi12:43:062:16:366:509:26
6:57
#5185
21M
21.00 mi12:50:352:24:056:527:29
7:29
#5107
35K
21.75 mi12:55:402:29:106:525:05
6:48
#5060
23M
23.00 mi13:04:272:37:576:528:47
7:01
#4953
24M
24.00 mi13:11:182:44:486:526:51
6:51
#4863
40K
24.85 mi13:17:192:50:496:526:01
7:02
#4812
25.2M
25.20 mi13:20:032:53:336:532:44
7:56
#4820
Finish
26.22 mi13:26:593:00:296:536:56
6:48
#4796
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi72677557555475(Top 19%)433(Top 4%)433(Top 8%)
10K6.21 mi3.10 mi6743+524633+122633+1226075(Top 21%)513(Top 4%)513(Top 9%)
15K9.32 mi3.11 mi6309+434541+92541+925475(Top 19%)433(Top 4%)433(Top 8%)
20K12.43 mi3.11 mi5974+335497+44497+445130(Top 18%)390(Top 3%)390(Top 7%)
Half13.11 mi0.68 mi5903+71482+15482+154687(Top 17%)316(Top 3%)316(Top 6%)
25K15.53 mi2.42 mi5703+200467+15467+155037(Top 18%)402(Top 3%)402(Top 7%)
30K18.64 mi3.11 mi5348+355428+39428+394358(Top 15%)354(Top 3%)354(Top 6%)
20M20.00 mi1.36 mi5185+163410+18410+183799(Top 13%)295(Top 2%)295(Top 5%)
21M21.00 mi1.00 mi5107+78406+4406+44565(Top 16%)501(Top 4%)501(Top 9%)
35K21.75 mi0.75 mi5060+47403+3403+34130(Top 15%)419(Top 3%)419(Top 8%)
23M23.00 mi1.25 mi4953+107400+3400+33880(Top 14%)385(Top 3%)385(Top 7%)
24M24.00 mi1.00 mi4863+90396+4396+43840(Top 14%)423(Top 3%)423(Top 8%)
40K24.85 mi0.85 mi4812+51391+5391+54155(Top 15%)534(Top 4%)534(Top 10%)
25.2M25.20 mi0.35 mi4820-8397-6397-65606(Top 20%)1069(Top 9%)1069(Top 20%)
Finish26.22 mi1.02 mi4796+24400-3400-34544(Top 16%)699(Top 6%)699(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5475

Females

433

F18-39

433

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

6075

Females

513

F18-39

513

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5475

Females

433

F18-39

433

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5130

Females

390

F18-39

390

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4687

Females

316

F18-39

316

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5037

Females

402

F18-39

402

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4358

Females

354

F18-39

354

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3799

Females

295

F18-39

295

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4565

Females

501

F18-39

501

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4130

Females

419

F18-39

419

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3880

Females

385

F18-39

385

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3840

Females

423

F18-39

423

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4155

Females

534

F18-39

534

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5606

Females

1069

F18-39

1069

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4544

Females

699

F18-39

699

Passing Analysis

Category:
Athletes Passed
2791
Passed By
320
Net Change
+2471
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7267
5K → 10K55329+524#7267#6743
10K → 15K45117+434#6743#6309
15K → 20K34914+335#6309#5974
20K → Half732+71#5974#5903
Half → 25K22424+200#5903#5703
25K → 30K38025+355#5703#5348
30K → 20M1685+163#5348#5185
20M → 21M12042+78#5185#5107
21M → 35K7023+47#5107#5060
35K → 23M13326+107#5060#4953
23M → 24M10818+90#4953#4863
24M → 40K7726+51#4863#4812
40K → 25.2M2634-8#4812#4820
25.2M → Finish5935+24#4820#4796
TOTALS2791320+2471
📊

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