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BOSTON MARATHON 2025

Samantha Zaino

Bib: 30745•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
39:11
Rank: #28352
Start → 5K
39:11 | 12:37/mi
10K· 6.21 mi
1:18:40
Rank: #28330 (+22)
5K → 10K
39:29 | 12:43/mi
15K· 9.32 mi
1:58:05
Rank: #28285 (+45)
10K → 15K
39:25 | 12:41/mi
20K· 12.43 mi
2:38:13
Rank: #28212 (+73)
15K → 20K
40:08 | 12:55/mi
Half· 13.11 mi
2:46:49
Rank: #28201 (+11)
20K → Half
8:36 | 12:36/mi
25K· 15.53 mi
3:18:21
Rank: #28108 (+93)
Half → 25K
31:32 | 13:00/mi
30K· 18.64 mi
3:59:44
Rank: #27974 (+134)
25K → 30K
41:23 | 13:19/mi
20M
4:17:40
Rank: #27917 (+57)
30K → 20M
17:56 | 13:12/mi
21M
4:32:05
Rank: #27879 (+38)
20M → 21M
14:25 | 14:25/mi
35K· 21.75 mi
4:41:50
Rank: #27858 (+21)
21M → 35K
9:45 | 13:02/mi
23M
4:58:30
Rank: #27810 (+48)
35K → 23M
16:40 | 13:19/mi
24M
5:11:45
Rank: #27797 (+13)
23M → 24M
13:15 | 13:15/mi
40K· 24.85 mi
5:23:01
Rank: #27768 (+29)
24M → 40K
11:16 | 13:11/mi
25.2M
5:28:12
Rank: #27765 (+3)
40K → 25.2M
5:11 | 15:02/mi
Finish· 26.22 mi
5:41:26
Rank: #27767 (-2)
25.2M → Finish
13:14 | 12:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:46:49
Pace12:43 /mi
2nd Half
Distance13.11 mi
Time2:54:37
Pace13:19 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:5539:1112:3739:11
12:37
-
10K
6.21 mi12:39:241:18:4012:4039:29
12:43
+0:06
15K
9.32 mi13:18:491:58:0512:4039:25
12:41
-0:02
20K
12.43 mi13:58:572:38:1312:4440:08
12:55
+0:14
Half
13.11 mi14:07:332:46:4912:438:36
12:36
-0:19
25K
15.53 mi14:39:053:18:2112:4631:32
13:00
+0:24
30K
18.64 mi15:20:283:59:4412:5241:23
13:19
+0:19
20M
20.00 mi15:38:244:17:4012:5317:56
13:12
-0:07
21M
21.00 mi15:52:494:32:0512:5714:25
14:25
+1:13
35K
21.75 mi16:02:344:41:5012:589:45
13:02
-1:23
23M
23.00 mi16:19:144:58:3012:5916:40
13:19
+0:17
24M
24.00 mi16:32:295:11:4512:5913:15
13:15
-0:04
40K
24.85 mi16:43:455:23:0113:0011:16
13:11
-0:04
25.2M
25.20 mi16:48:565:28:1213:015:11
15:02
+1:51
Finish
26.22 mi17:02:105:41:2613:0213:14
12:59
-2:03

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

12:36 /mi

Average Pace

13:02 /mi

Slowest Pace

15:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:21:50

94% of race

Time at Steady Pace

14:25

4% of race

Time at Slower Pace

5:11

2% of race

Average Pace: 13:01 /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 mi11:59:5539:1112:3739:11
12:37
#28352
10K
6.21 mi12:39:241:18:4012:4039:29
12:43
#28330
15K
9.32 mi13:18:491:58:0512:4039:25
12:41
#28285
20K
12.43 mi13:58:572:38:1312:4440:08
12:55
#28212
Half
13.11 mi14:07:332:46:4912:438:36
12:36
#28201
25K
15.53 mi14:39:053:18:2112:4631:32
13:00
#28108
30K
18.64 mi15:20:283:59:4412:5241:23
13:19
#27974
20M
20.00 mi15:38:244:17:4012:5317:56
13:12
#27917
21M
21.00 mi15:52:494:32:0512:5714:25
14:25
#27879
35K
21.75 mi16:02:344:41:5012:589:45
13:02
#27858
23M
23.00 mi16:19:144:58:3012:5916:40
13:19
#27810
24M
24.00 mi16:32:295:11:4512:5913:15
13:15
#27797
40K
24.85 mi16:43:455:23:0113:0011:16
13:11
#27768
25.2M
25.20 mi16:48:565:28:1213:015:11
15:02
#27765
Finish
26.22 mi17:02:105:41:2613:0213:14
12:59
#27767
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi28352121941219428036(Top 99%)11997(Top 98%)11997(Top 1207%)
10K6.21 mi3.10 mi28330+2212179+1512179+1528260(Top 99%)12144(Top 99%)12144(Top 1222%)
15K9.32 mi3.11 mi28285+4512157+2212157+2228036(Top 99%)11997(Top 98%)11997(Top 1207%)
20K12.43 mi3.11 mi28212+7312115+4212115+4227779(Top 98%)11861(Top 97%)11861(Top 1193%)
Half13.11 mi0.68 mi28201+1112106+912106+927813(Top 98%)11898(Top 97%)11898(Top 1197%)
25K15.53 mi2.42 mi28108+9312046+6012046+6027301(Top 96%)11597(Top 95%)11597(Top 1167%)
30K18.64 mi3.11 mi27974+13411975+7111975+7126982(Top 95%)11483(Top 94%)11483(Top 1155%)
20M20.00 mi1.36 mi27917+5711944+3111944+3126630(Top 94%)11353(Top 93%)11353(Top 1142%)
21M21.00 mi1.00 mi27879+3811928+1611928+1626631(Top 94%)11386(Top 93%)11386(Top 1145%)
35K21.75 mi0.75 mi27858+2111923+511923+526988(Top 95%)11589(Top 95%)11589(Top 1166%)
23M23.00 mi1.25 mi27810+4811896+2711896+2726724(Top 94%)11467(Top 94%)11467(Top 1154%)
24M24.00 mi1.00 mi27797+1311894+211894+227093(Top 95%)11687(Top 96%)11687(Top 1176%)
40K24.85 mi0.85 mi27768+2911885+911885+926463(Top 93%)11365(Top 93%)11365(Top 1143%)
25.2M25.20 mi0.35 mi27765+3118851188527137(Top 96%)11726(Top 96%)11726(Top 1180%)
Finish26.22 mi1.02 mi27767-211894-911894-927619(Top 97%)11920(Top 97%)11920(Top 1199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21stories
+97ft-345ft

Overall

28036

Females

11997

F55-59

11997

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

28260

Females

12144

F55-59

12144

10K→15K

6.2 - 9.3 mi

Top 99%
×3stories
+67ft-78ft

Overall

28036

Females

11997

F55-59

11997

15K→20K

9.3 - 12.4 mi

Top 98%
×5stories
+106ft-86ft

Overall

27779

Females

11861

F55-59

11861

20K→Half

12.4 - 13.1 mi

Top 98%
×2stories
+19ft-37ft

Overall

27813

Females

11898

F55-59

11898

Half→25K

13.1 - 15.5 mi

Top 96%
×4stories
+66ft-88ft

Overall

27301

Females

11597

F55-59

11597

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

26982

Females

11483

F55-59

11483

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

26630

Females

11353

F55-59

11353

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

26631

Females

11386

F55-59

11386

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

26988

Females

11589

F55-59

11589

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

26724

Females

11467

F55-59

11467

23M→24M

23.0 - 24.0 mi

Top 95%
×6stories
+12ft-82ft

Overall

27093

Females

11687

F55-59

11687

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26463

Females

11365

F55-59

11365

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27137

Females

11726

F55-59

11726

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

27619

Females

11920

F55-59

11920

Passing Analysis

Category:
Athletes Passed
655
Passed By
70
Net Change
+585
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28352
5K → 10K286+22#28352#28330
10K → 15K483+45#28330#28285
15K → 20K774+73#28285#28212
20K → Half165+11#28212#28201
Half → 25K952+93#28201#28108
25K → 30K1362+134#28108#27974
30K → 20M614+57#27974#27917
20M → 21M435+38#27917#27879
21M → 35K265+21#27879#27858
35K → 23M513+48#27858#27810
23M → 24M218+13#27810#27797
24M → 40K301+29#27797#27768
40K → 25.2M96+3#27768#27765
25.2M → Finish1416-2#27765#27767
TOTALS65570+585
📊

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