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BOSTON MARATHON 2025

Samantha Liebe

Bib: 17629•F

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:36
Rank: #13105
Start → 5K
23:36 | 7:36/mi
10K· 6.21 mi
49:06
Rank: #15707 (-2602)
5K → 10K
25:30 | 8:12/mi
15K· 9.32 mi
1:17:02
Rank: #18187 (-2480)
10K → 15K
27:56 | 8:59/mi
20K· 12.43 mi
1:45:46
Rank: #19336 (-1149)
15K → 20K
28:44 | 9:15/mi
Half· 13.11 mi
1:51:56
Rank: #19514 (-178)
20K → Half
6:10 | 9:02/mi
25K· 15.53 mi
2:15:09
Rank: #20064 (-550)
Half → 25K
23:13 | 9:35/mi
30K· 18.64 mi
2:46:06
Rank: #20417 (-353)
25K → 30K
30:57 | 9:58/mi
20M
2:59:51
Rank: #20521 (-104)
30K → 20M
13:45 | 10:07/mi
21M
3:10:30
Rank: #20523 (-2)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
3:17:29
Rank: #20503 (+20)
21M → 35K
6:59 | 9:20/mi
23M
3:29:49
Rank: #20476 (+27)
35K → 23M
12:20 | 9:51/mi
24M
3:39:31
Rank: #20496 (-20)
23M → 24M
9:42 | 9:42/mi
40K· 24.85 mi
3:48:06
Rank: #20518 (-22)
24M → 40K
8:35 | 10:02/mi
25.2M
3:51:46
Rank: #20521 (-3)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
4:00:14
Rank: #20385 (+136)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:56
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time2:08:18
Pace9:47 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0223:367:3623:36
7:36
-
10K
6.21 mi11:39:3249:067:5425:30
8:12
+0:36
15K
9.32 mi12:07:281:17:028:1627:56
8:59
+0:47
20K
12.43 mi12:36:121:45:468:3128:44
9:15
+0:16
Half
13.11 mi12:42:221:51:568:326:10
9:02
-0:13
25K
15.53 mi13:05:352:15:098:4223:13
9:35
+0:33
30K
18.64 mi13:36:322:46:068:5530:57
9:58
+0:23
20M
20.00 mi13:50:172:59:519:0013:45
10:07
+0:09
21M
21.00 mi14:00:563:10:309:0410:39
10:39
+0:32
35K
21.75 mi14:07:553:17:299:056:59
9:20
-1:19
23M
23.00 mi14:20:153:29:499:0712:20
9:51
+0:31
24M
24.00 mi14:29:573:39:319:099:42
9:42
-0:09
40K
24.85 mi14:38:323:48:069:118:35
10:02
+0:20
25.2M
25.20 mi14:42:123:51:469:123:40
10:38
+0:36
Finish
26.22 mi14:50:404:00:149:108:28
8:19
-2:19

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

7:36 /mi

Average Pace

9:10 /mi

Slowest Pace

10:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:40

38% of race

Time at Steady Pace

1:51:55

47% of race

Time at Slower Pace

36:39

15% of race

Average Pace: 9:10 /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 mi11:14:0223:367:3623:36
7:36
#13105
10K
6.21 mi11:39:3249:067:5425:30
8:12
#15707
15K
9.32 mi12:07:281:17:028:1627:56
8:59
#18187
20K
12.43 mi12:36:121:45:468:3128:44
9:15
#19336
Half
13.11 mi12:42:221:51:568:326:10
9:02
#19514
25K
15.53 mi13:05:352:15:098:4223:13
9:35
#20064
30K
18.64 mi13:36:322:46:068:5530:57
9:58
#20417
20M
20.00 mi13:50:172:59:519:0013:45
10:07
#20521
21M
21.00 mi14:00:563:10:309:0410:39
10:39
#20523
35K
21.75 mi14:07:553:17:299:056:59
9:20
#20503
23M
23.00 mi14:20:153:29:499:0712:20
9:51
#20476
24M
24.00 mi14:29:573:39:319:099:42
9:42
#20496
40K
24.85 mi14:38:323:48:069:118:35
10:02
#20518
25.2M
25.20 mi14:42:123:51:469:123:40
10:38
#20521
Finish
26.22 mi14:50:404:00:149:108:28
8:19
#20385
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi131053384338421993(Top 77%)8544(Top 70%)8544(Top 156%)
10K6.21 mi3.10 mi15707-26024967-15834967-158317961(Top 63%)6270(Top 51%)6270(Top 115%)
15K9.32 mi3.11 mi18187-24806440-14736440-147321993(Top 77%)8544(Top 70%)8544(Top 156%)
20K12.43 mi3.11 mi19336-11497102-6627102-66222079(Top 78%)8625(Top 71%)8625(Top 158%)
Half13.11 mi0.68 mi19514-1787200-987200-9821984(Top 77%)8589(Top 70%)8589(Top 157%)
25K15.53 mi2.42 mi20064-5507522-3227522-32222114(Top 78%)8714(Top 71%)8714(Top 159%)
30K18.64 mi3.11 mi20417-3537772-2507772-25021497(Top 76%)8499(Top 70%)8499(Top 155%)
20M20.00 mi1.36 mi20521-1047841-697841-6921345(Top 75%)8544(Top 70%)8544(Top 156%)
21M21.00 mi1.00 mi20523-27867-267867-2620461(Top 72%)8161(Top 67%)8161(Top 149%)
35K21.75 mi0.75 mi20503+207868-17868-119734(Top 69%)7842(Top 64%)7842(Top 143%)
23M23.00 mi1.25 mi20476+277874-67874-619971(Top 70%)8038(Top 66%)8038(Top 147%)
24M24.00 mi1.00 mi20496-207900-267900-2620393(Top 72%)8285(Top 68%)8285(Top 151%)
40K24.85 mi0.85 mi20518-227931-317931-3120575(Top 72%)8443(Top 69%)8443(Top 154%)
25.2M25.20 mi0.35 mi20521-37941-107941-1019533(Top 69%)7920(Top 65%)7920(Top 145%)
Finish26.22 mi1.02 mi20385+1367880+617880+6115018(Top 53%)5503(Top 45%)5503(Top 101%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

21993

Females

8544

F18-39

8544

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17961

Females

6270

F18-39

6270

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

21993

Females

8544

F18-39

8544

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

22079

Females

8625

F18-39

8625

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21984

Females

8589

F18-39

8589

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22114

Females

8714

F18-39

8714

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21497

Females

8499

F18-39

8499

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21345

Females

8544

F18-39

8544

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20461

Females

8161

F18-39

8161

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19734

Females

7842

F18-39

7842

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19971

Females

8038

F18-39

8038

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20393

Females

8285

F18-39

8285

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20575

Females

8443

F18-39

8443

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19533

Females

7920

F18-39

7920

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15018

Females

5503

F18-39

5503

Passing Analysis

Category:
Athletes Passed
813
Passed By
8093
Net Change
-7280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13105
5K → 10K142616-2602#13105#15707
10K → 15K82488-2480#15707#18187
15K → 20K271176-1149#18187#19336
20K → Half3181-178#19336#19514
Half → 25K44594-550#19514#20064
25K → 30K139492-353#20064#20417
30K → 20M67171-104#20417#20521
20M → 21M8890-2#20521#20523
21M → 35K6141+20#20523#20503
35K → 23M9972+27#20503#20476
23M → 24M4868-20#20476#20496
24M → 40K4971-22#20496#20518
40K → 25.2M2326-3#20518#20521
25.2M → Finish1437+136#20521#20385
TOTALS8138093-7280
📊

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