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BOSTON MARATHON 2025

Carissa Liebowitz

Bib: 18648•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 28%
Masters (Masters Women)
#0 / 6759
Top 14%
Division (F40-44)
#0 / 1718
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:54/mi
24:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
48:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:13:07
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:37:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:42:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:00/mi
2:02:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:27:06
↑ 181↓ 1480.2%
20M
8:00/mi
2:37:58
↑ 64↓ 500.2%
21M
8:19/mi
2:46:17
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:52:03
↑ 17↓ 861.7%
23M
7:58/mi
3:02:01
↑ 23↓ 630.6%
24M
7:47/mi
3:09:48
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:16:39
↓ 200.3%
25.2M
8:45/mi
3:19:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:27:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:55
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:44:33
Pace7:59 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2124:337:5424:33
7:54
-
10K
6.21 mi11:39:3948:517:5224:18
7:49
-0:05
15K
9.32 mi12:03:551:13:077:5124:16
7:49
0:00
20K
12.43 mi12:28:261:37:387:5124:31
7:53
+0:04
Half
13.11 mi12:33:431:42:557:515:17
7:45
-0:08
25K
15.53 mi12:53:062:02:187:5219:23
8:00
+0:15
30K
18.64 mi13:17:542:27:067:5324:48
7:59
-0:01
20M
20.00 mi13:28:462:37:587:5410:52
8:00
+0:01
21M
21.00 mi13:37:052:46:177:558:19
8:19
+0:19
35K
21.75 mi13:42:512:52:037:555:46
7:42
-0:37
23M
23.00 mi13:52:493:02:017:559:58
7:58
+0:16
24M
24.00 mi14:00:363:09:487:557:47
7:47
-0:11
40K
24.85 mi14:07:273:16:397:556:51
8:01
+0:14
25.2M
25.20 mi14:10:283:19:407:553:01
8:45
+0:44
Finish
26.22 mi14:18:163:27:287:557:48
7:39
-1:06

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

7:39 /mi

Average Pace

7:55 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:27

99% of race

Time at Steady Pace

3:01

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi11:15:2124:337:5424:33
7:54
#15707
10K
6.21 mi11:39:3948:517:5224:18
7:49
#15348
15K
9.32 mi12:03:551:13:077:5124:16
7:49
#15035
20K
12.43 mi12:28:261:37:387:5124:31
7:53
#14717
Half
13.11 mi12:33:431:42:557:515:17
7:45
#14675
25K
15.53 mi12:53:062:02:187:5219:23
8:00
#14494
30K
18.64 mi13:17:542:27:067:5324:48
7:59
#13803
20M
20.00 mi13:28:462:37:587:5410:52
8:00
#13511
21M
21.00 mi13:37:052:46:177:558:19
8:19
#13236
35K
21.75 mi13:42:512:52:037:555:46
7:42
#13114
23M
23.00 mi13:52:493:02:017:559:58
7:58
#12871
24M
24.00 mi14:00:363:09:487:557:47
7:47
#12699
40K
24.85 mi14:07:273:16:397:556:51
8:01
#12585
25.2M
25.20 mi14:10:283:19:407:553:01
8:45
#12532
Finish
26.22 mi14:18:163:27:287:557:48
7:39
#12441
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi157074959495914467(Top 51%)4287(Top 35%)4287(Top 250%)
10K6.21 mi3.10 mi15348+3594746+2134746+21315012(Top 53%)4541(Top 37%)4541(Top 264%)
15K9.32 mi3.11 mi15035+3134577+1694577+16914467(Top 51%)4287(Top 35%)4287(Top 250%)
20K12.43 mi3.11 mi14717+3184417+1604417+16014009(Top 49%)4097(Top 34%)4097(Top 238%)
Half13.11 mi0.68 mi14675+424394+234394+2313808(Top 49%)3947(Top 32%)3947(Top 230%)
25K15.53 mi2.42 mi14494+1814331+634331+6313843(Top 49%)4123(Top 34%)4123(Top 240%)
30K18.64 mi3.11 mi13803+6913996+3353996+33511263(Top 40%)2918(Top 24%)2918(Top 170%)
20M20.00 mi1.36 mi13511+2923856+1403856+14010458(Top 37%)2672(Top 22%)2672(Top 156%)
21M21.00 mi1.00 mi13236+2753739+1173739+1179376(Top 33%)2335(Top 19%)2335(Top 136%)
35K21.75 mi0.75 mi13114+1223687+523687+5210203(Top 36%)2721(Top 22%)2721(Top 158%)
23M23.00 mi1.25 mi12871+2433592+953592+959784(Top 34%)2640(Top 22%)2640(Top 154%)
24M24.00 mi1.00 mi12699+1723526+663526+669730(Top 34%)2684(Top 22%)2684(Top 156%)
40K24.85 mi0.85 mi12585+1143498+283498+2810338(Top 36%)3102(Top 25%)3102(Top 181%)
25.2M25.20 mi0.35 mi12532+533489+93489+910377(Top 37%)3213(Top 26%)3213(Top 187%)
Finish26.22 mi1.02 mi12441+913468+213468+2110384(Top 37%)3170(Top 26%)3170(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14467

Females

4287

F40-44

4287

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

15012

Females

4541

F40-44

4541

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14467

Females

4287

F40-44

4287

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

14009

Females

4097

F40-44

4097

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13808

Females

3947

F40-44

3947

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13843

Females

4123

F40-44

4123

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11263

Females

2918

F40-44

2918

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10458

Females

2672

F40-44

2672

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9376

Females

2335

F40-44

2335

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10203

Females

2721

F40-44

2721

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9784

Females

2640

F40-44

2640

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9730

Females

2684

F40-44

2684

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10338

Females

3102

F40-44

3102

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10377

Females

3213

F40-44

3213

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10384

Females

3170

F40-44

3170

Passing Analysis

Category:
Athletes Passed
3771
Passed By
505
Net Change
+3266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15707
5K → 10K528169+359#15707#15348
10K → 15K38572+313#15348#15035
15K → 20K37658+318#15035#14717
20K → Half5816+42#14717#14675
Half → 25K26079+181#14675#14494
25K → 30K7009+691#14494#13803
30K → 20M3008+292#13803#13511
20M → 21M2794+275#13511#13236
21M → 35K1286+122#13236#13114
35K → 23M2529+243#13114#12871
23M → 24M1808+172#12871#12699
24M → 40K14127+114#12699#12585
40K → 25.2M6310+53#12585#12532
25.2M → Finish12130+91#12532#12441
TOTALS3771505+3266
📊

Passing Visuals

Category:
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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