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BOSTON MARATHON 2025

Bianca Kirsh

Bib: 14977•F

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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:50
Rank: #10866
Start → 5K
22:50 | 7:21/mi
10K· 6.21 mi
45:55
Rank: #11164 (-298)
5K → 10K
23:05 | 7:26/mi
15K· 9.32 mi
1:09:21
Rank: #11453 (-289)
10K → 15K
23:26 | 7:33/mi
20K· 12.43 mi
1:32:38
Rank: #11265 (+188)
15K → 20K
23:17 | 7:30/mi
Half· 13.11 mi
1:37:44
Rank: #11267 (-2)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:56:20
Rank: #11236 (+31)
Half → 25K
18:36 | 7:40/mi
30K· 18.64 mi
2:20:29
Rank: #10923 (+313)
25K → 30K
24:09 | 7:46/mi
20M
2:31:13
Rank: #10777 (+146)
30K → 20M
10:44 | 7:54/mi
21M
2:39:39
Rank: #10697 (+80)
20M → 21M
8:26 | 8:26/mi
35K· 21.75 mi
2:45:31
Rank: #10690 (+7)
21M → 35K
5:52 | 7:51/mi
23M
2:55:30
Rank: #10602 (+88)
35K → 23M
9:59 | 7:58/mi
24M
3:03:15
Rank: #10515 (+87)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:10:15
Rank: #10523 (-8)
24M → 40K
7:00 | 8:11/mi
25.2M
3:13:24
Rank: #10521 (+2)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:21:56
Rank: #10708 (-187)
25.2M → Finish
8:32 | 8:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:44
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:44:12
Pace7:57 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0522:507:2122:50
7:21
-
10K
6.21 mi11:16:1045:557:2323:05
7:26
+0:05
15K
9.32 mi11:39:361:09:217:2623:26
7:33
+0:07
20K
12.43 mi12:02:531:32:387:2723:17
7:30
-0:03
Half
13.11 mi12:07:591:37:447:275:06
7:29
-0:01
25K
15.53 mi12:26:351:56:207:2918:36
7:40
+0:11
30K
18.64 mi12:50:442:20:297:3224:09
7:46
+0:06
20M
20.00 mi13:01:282:31:137:3410:44
7:54
+0:08
21M
21.00 mi13:09:542:39:397:368:26
8:26
+0:32
35K
21.75 mi13:15:462:45:317:375:52
7:51
-0:35
23M
23.00 mi13:25:452:55:307:389:59
7:58
+0:07
24M
24.00 mi13:33:303:03:157:387:45
7:45
-0:13
40K
24.85 mi13:40:303:10:157:397:00
8:11
+0:26
25.2M
25.20 mi13:43:393:13:247:403:09
9:08
+0:57
Finish
26.22 mi13:52:113:21:567:428:32
8:22
-0:46

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

7:21 /mi

Average Pace

7:42 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:18

37% of race

Time at Steady Pace

1:40:31

50% of race

Time at Slower Pace

27:07

13% of race

Average Pace: 7:42 /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 mi10:53:0522:507:2122:50
7:21
#10866
10K
6.21 mi11:16:1045:557:2323:05
7:26
#11164
15K
9.32 mi11:39:361:09:217:2623:26
7:33
#11453
20K
12.43 mi12:02:531:32:387:2723:17
7:30
#11265
Half
13.11 mi12:07:591:37:447:275:06
7:29
#11267
25K
15.53 mi12:26:351:56:207:2918:36
7:40
#11236
30K
18.64 mi12:50:442:20:297:3224:09
7:46
#10923
20M
20.00 mi13:01:282:31:137:3410:44
7:54
#10777
21M
21.00 mi13:09:542:39:397:368:26
8:26
#10697
35K
21.75 mi13:15:462:45:317:375:52
7:51
#10690
23M
23.00 mi13:25:452:55:307:389:59
7:58
#10602
24M
24.00 mi13:33:303:03:157:387:45
7:45
#10515
40K
24.85 mi13:40:303:10:157:397:00
8:11
#10523
25.2M
25.20 mi13:43:393:13:247:403:09
9:08
#10521
Finish
26.22 mi13:52:113:21:567:428:32
8:22
#10708
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi108662216221612140(Top 43%)2982(Top 24%)2982(Top 55%)
10K6.21 mi3.10 mi11164-2982380-1642380-16411469(Top 40%)2548(Top 21%)2548(Top 47%)
15K9.32 mi3.11 mi11453-2892557-1772557-17712140(Top 43%)2982(Top 24%)2982(Top 55%)
20K12.43 mi3.11 mi11265+1882488+692488+6910733(Top 38%)2336(Top 19%)2336(Top 43%)
Half13.11 mi0.68 mi11267-22481+72481+711546(Top 41%)2705(Top 22%)2705(Top 49%)
25K15.53 mi2.42 mi11236+312508-272508-2711327(Top 40%)2755(Top 23%)2755(Top 50%)
30K18.64 mi3.11 mi10923+3132425+832425+839742(Top 34%)2163(Top 18%)2163(Top 40%)
20M20.00 mi1.36 mi10777+1462398+272398+279755(Top 34%)2331(Top 19%)2331(Top 43%)
21M21.00 mi1.00 mi10697+802394+42394+410076(Top 35%)2642(Top 22%)2642(Top 48%)
35K21.75 mi0.75 mi10690+72405-112405-1111147(Top 39%)3173(Top 26%)3173(Top 58%)
23M23.00 mi1.25 mi10602+882401+42401+49870(Top 35%)2674(Top 22%)2674(Top 49%)
24M24.00 mi1.00 mi10515+872393+82393+89479(Top 33%)2556(Top 21%)2556(Top 47%)
40K24.85 mi0.85 mi10523-82425-322425-3211491(Top 40%)3643(Top 30%)3643(Top 67%)
25.2M25.20 mi0.35 mi10521+22442-172442-1712573(Top 44%)4252(Top 35%)4252(Top 78%)
Finish26.22 mi1.02 mi10708-1872580-1382580-13815392(Top 54%)5681(Top 46%)5681(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

12140

Females

2982

F18-39

2982

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11469

Females

2548

F18-39

2548

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

12140

Females

2982

F18-39

2982

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10733

Females

2336

F18-39

2336

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11546

Females

2705

F18-39

2705

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

11327

Females

2755

F18-39

2755

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9742

Females

2163

F18-39

2163

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9755

Females

2331

F18-39

2331

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

10076

Females

2642

F18-39

2642

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

11147

Females

3173

F18-39

3173

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9870

Females

2674

F18-39

2674

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9479

Females

2556

F18-39

2556

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11491

Females

3643

F18-39

3643

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12573

Females

4252

F18-39

4252

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15392

Females

5681

F18-39

5681

Passing Analysis

Category:
Athletes Passed
1909
Passed By
1751
Net Change
+158
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10866
5K → 10K141439-298#10866#11164
10K → 15K108397-289#11164#11453
15K → 20K27385+188#11453#11265
20K → Half3537-2#11265#11267
Half → 25K182151+31#11267#11236
25K → 30K39178+313#11236#10923
30K → 20M19448+146#10923#10777
20M → 21M13353+80#10777#10697
21M → 35K5447+7#10697#10690
35K → 23M14759+88#10690#10602
23M → 24M12033+87#10602#10515
24M → 40K6472-8#10515#10523
40K → 25.2M3937+2#10523#10521
25.2M → Finish28215-187#10521#10708
TOTALS19091751+158
📊

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