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BOSTON MARATHON 2025

Juliet Santo

Bib: 26508•F

MA

0:00
0:00
/ mi
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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

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
10:43/mi
33:18
↑ 97↓ 3451.5%
10K· 6.21 mi
10:48/mi
1:06:52
↑ 79↓ 1380.4%
15K· 9.32 mi
10:40/mi
1:39:59
↑ 67↓ 78
20K· 12.43 mi
10:45/mi
2:13:23
↑ 106↓ 860.1%
Half· 13.11 mi
10:39/mi
2:20:39
↑ 19↓ 370.5%
25K· 15.53 mi
11:08/mi
2:47:38
↑ 66↓ 880.2%
30K· 18.64 mi
11:27/mi
3:23:11
↑ 181↓ 1480.2%
20M
11:04/mi
3:38:14
↑ 64↓ 500.2%
21M
11:56/mi
3:50:10
↑ 106↓ 241.6%
35K· 21.75 mi
10:22/mi
3:57:55
↑ 17↓ 861.7%
23M
11:12/mi
4:11:57
↑ 23↓ 630.6%
24M
10:46/mi
4:22:43
↓ 821.3%
40K· 24.85 mi
10:53/mi
4:32:01
↓ 200.3%
25.2M
11:53/mi
4:36:07
↑ 13↓ 160.2%
Finish· 26.22 mi
9:40/mi
4:45:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:39
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time2:25:19
Pace11:05 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:1133:1810:4333:18
10:43
-
10K
6.21 mi12:32:451:06:5210:4633:34
10:48
+0:05
15K
9.32 mi13:05:521:39:5910:4433:07
10:40
-0:08
20K
12.43 mi13:39:162:13:2310:4433:24
10:45
+0:05
Half
13.11 mi13:46:322:20:3910:447:16
10:39
-0:06
25K
15.53 mi14:13:312:47:3810:4726:59
11:08
+0:29
30K
18.64 mi14:49:043:23:1110:5435:33
11:27
+0:19
20M
20.00 mi15:04:073:38:1410:5515:03
11:04
-0:23
21M
21.00 mi15:16:033:50:1010:5811:56
11:56
+0:52
35K
21.75 mi15:23:483:57:5510:567:45
10:22
-1:34
23M
23.00 mi15:37:504:11:5710:5714:02
11:12
+0:50
24M
24.00 mi15:48:364:22:4310:5710:46
10:46
-0:26
40K
24.85 mi15:57:544:32:0110:579:18
10:53
+0:07
25.2M
25.20 mi16:02:004:36:0710:574:06
11:53
+1:00
Finish
26.22 mi16:11:514:45:5810:559:51
9:40
-2:13

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

9:40 /mi

Average Pace

10:55 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:36

6% of race

Time at Steady Pace

2:55:46

61% of race

Time at Slower Pace

1:32:36

32% of race

Average Pace: 10:54 /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 mi11:59:1133:1810:4333:18
10:43
#27150
10K
6.21 mi12:32:451:06:5210:4633:34
10:48
#26952
15K
9.32 mi13:05:521:39:5910:4433:07
10:40
#26673
20K
12.43 mi13:39:162:13:2310:4433:24
10:45
#26375
Half
13.11 mi13:46:322:20:3910:447:16
10:39
#26360
25K
15.53 mi14:13:312:47:3810:4726:59
11:08
#26178
30K
18.64 mi14:49:043:23:1110:5435:33
11:27
#25907
20M
20.00 mi15:04:073:38:1410:5515:03
11:04
#25762
21M
21.00 mi15:16:033:50:1010:5811:56
11:56
#25645
35K
21.75 mi15:23:483:57:5510:567:45
10:22
#25564
23M
23.00 mi15:37:504:11:5710:5714:02
11:12
#25480
24M
24.00 mi15:48:364:22:4310:5710:46
10:46
#25406
40K
24.85 mi15:57:544:32:0110:579:18
10:53
#25331
25.2M
25.20 mi16:02:004:36:0710:574:06
11:53
#25301
Finish
26.22 mi16:11:514:45:5810:559:51
9:40
#25239
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27150114161141626186(Top 92%)10883(Top 89%)10883(Top 199%)
10K6.21 mi3.10 mi26952+19811316+10011316+10026777(Top 94%)11218(Top 92%)11218(Top 205%)
15K9.32 mi3.11 mi26673+27911156+16011156+16026186(Top 92%)10883(Top 89%)10883(Top 199%)
20K12.43 mi3.11 mi26375+29810992+16410992+16425624(Top 90%)10601(Top 87%)10601(Top 194%)
Half13.11 mi0.68 mi26360+1510984+810984+825991(Top 92%)10815(Top 88%)10815(Top 198%)
25K15.53 mi2.42 mi26178+18210881+10310881+10325385(Top 89%)10506(Top 86%)10506(Top 192%)
30K18.64 mi3.11 mi25907+27110771+11010771+11024766(Top 87%)10277(Top 84%)10277(Top 188%)
20M20.00 mi1.36 mi25762+14510713+5810713+5823730(Top 84%)9812(Top 80%)9812(Top 179%)
21M21.00 mi1.00 mi25645+11710662+5110662+5123463(Top 83%)9749(Top 80%)9749(Top 178%)
35K21.75 mi0.75 mi25564+8110624+3810624+3822820(Top 80%)9456(Top 77%)9456(Top 173%)
23M23.00 mi1.25 mi25480+8410599+2510599+2523673(Top 83%)9939(Top 81%)9939(Top 182%)
24M24.00 mi1.00 mi25406+7410564+3510564+3523465(Top 83%)9869(Top 81%)9869(Top 180%)
40K24.85 mi0.85 mi25331+7510525+3910525+3922833(Top 80%)9619(Top 79%)9619(Top 176%)
25.2M25.20 mi0.35 mi25301+3010516+910516+922939(Top 81%)9639(Top 79%)9639(Top 176%)
Finish26.22 mi1.02 mi25239+6210490+2610490+2621758(Top 77%)9051(Top 74%)9051(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

26186

Females

10883

F18-39

10883

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26777

Females

11218

F18-39

11218

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

26186

Females

10883

F18-39

10883

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

25624

Females

10601

F18-39

10601

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

25991

Females

10815

F18-39

10815

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

25385

Females

10506

F18-39

10506

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24766

Females

10277

F18-39

10277

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

23730

Females

9812

F18-39

9812

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23463

Females

9749

F18-39

9749

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22820

Females

9456

F18-39

9456

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23673

Females

9939

F18-39

9939

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23465

Females

9869

F18-39

9869

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22833

Females

9619

F18-39

9619

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

22939

Females

9639

F18-39

9639

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21758

Females

9051

F18-39

9051

Passing Analysis

Category:
Athletes Passed
2085
Passed By
174
Net Change
+1911
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27150
5K → 10K26163+198#27150#26952
10K → 15K29213+279#26952#26673
15K → 20K30911+298#26673#26375
20K → Half3015+15#26375#26360
Half → 25K19715+182#26360#26178
25K → 30K28211+271#26178#25907
30K → 20M1494+145#25907#25762
20M → 21M1258+117#25762#25645
21M → 35K843+81#25645#25564
35K → 23M9814+84#25564#25480
23M → 24M839+74#25480#25406
24M → 40K805+75#25406#25331
40K → 25.2M311+30#25331#25301
25.2M → Finish642+62#25301#25239
TOTALS2085174+1911
📊

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