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BOSTON MARATHON 2025

Zenilda Santos

Bib: 23659•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
9:01/mi
28:00
↑ 97↓ 3451.5%
10K· 6.21 mi
8:53/mi
55:37
↑ 79↓ 1380.4%
15K· 9.32 mi
8:52/mi
1:23:11
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:50:59
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
1:57:03
↑ 19↓ 370.5%
25K· 15.53 mi
9:25/mi
2:19:54
↑ 66↓ 880.2%
30K· 18.64 mi
10:32/mi
2:52:36
↑ 181↓ 1480.2%
20M
11:01/mi
3:07:34
↑ 64↓ 500.2%
21M
13:22/mi
3:20:56
↑ 106↓ 241.6%
35K· 21.75 mi
11:24/mi
3:29:28
↑ 17↓ 861.7%
23M
12:36/mi
3:45:14
↑ 23↓ 630.6%
24M
10:49/mi
3:56:03
↓ 821.3%
40K· 24.85 mi
11:21/mi
4:05:45
↓ 200.3%
25.2M
12:43/mi
4:10:08
↑ 13↓ 160.2%
Finish· 26.22 mi
9:55/mi
4:20:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:03
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:23:11
Pace10:55 /mi
📊Positive Split: 22.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2528:009:0128:00
9:01
-
10K
6.21 mi12:12:0255:378:5727:37
8:53
-0:08
15K
9.32 mi12:39:361:23:118:5527:34
8:52
-0:01
20K
12.43 mi13:07:241:50:598:5627:48
8:57
+0:05
Half
13.11 mi13:13:281:57:038:566:04
8:54
-0:03
25K
15.53 mi13:36:192:19:549:0022:51
9:25
+0:31
30K
18.64 mi14:09:012:52:369:1632:42
10:32
+1:07
20M
20.00 mi14:23:593:07:349:2314:58
11:01
+0:29
21M
21.00 mi14:37:213:20:569:3413:22
13:22
+2:21
35K
21.75 mi14:45:533:29:289:388:32
11:24
-1:58
23M
23.00 mi15:01:393:45:149:4815:46
12:36
+1:12
24M
24.00 mi15:12:283:56:039:5010:49
10:49
-1:47
40K
24.85 mi15:22:104:05:459:539:42
11:21
+0:32
25.2M
25.20 mi15:26:334:10:089:564:23
12:43
+1:22
Finish
26.22 mi15:36:394:20:149:5610:06
9:55
-2:48

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

8:52 /mi

Average Pace

9:56 /mi

Slowest Pace

13:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:54

54% of race

Time at Steady Pace

1:08:35

26% of race

Time at Slower Pace

51:45

20% of race

Average Pace: 9:55 /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 mi11:44:2528:009:0128:00
9:01
#22472
10K
6.21 mi12:12:0255:378:5727:37
8:53
#22217
15K
9.32 mi12:39:361:23:118:5527:34
8:52
#21940
20K
12.43 mi13:07:241:50:598:5627:48
8:57
#21610
Half
13.11 mi13:13:281:57:038:566:04
8:54
#21604
25K
15.53 mi13:36:192:19:549:0022:51
9:25
#21585
30K
18.64 mi14:09:012:52:369:1632:42
10:32
#22013
20M
20.00 mi14:23:593:07:349:2314:58
11:01
#22178
21M
21.00 mi14:37:213:20:569:3413:22
13:22
#22471
35K
21.75 mi14:45:533:29:289:388:32
11:24
#22576
23M
23.00 mi15:01:393:45:149:4815:46
12:36
#22871
24M
24.00 mi15:12:283:56:039:5010:49
10:49
#22903
40K
24.85 mi15:22:104:05:459:539:42
11:21
#22944
25.2M
25.20 mi15:26:334:10:089:564:23
12:43
#23000
Finish
26.22 mi15:36:394:20:149:5610:06
9:55
#22978
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi224728891889121433(Top 75%)8241(Top 67%)8241(Top 632%)
10K6.21 mi3.10 mi22217+2558736+1558736+15521879(Top 77%)8533(Top 70%)8533(Top 655%)
15K9.32 mi3.11 mi21940+2778567+1698567+16921433(Top 75%)8241(Top 67%)8241(Top 632%)
20K12.43 mi3.11 mi21610+3308386+1818386+18120723(Top 73%)7905(Top 65%)7905(Top 607%)
Half13.11 mi0.68 mi21604+68383+38383+321421(Top 75%)8282(Top 68%)8282(Top 636%)
25K15.53 mi2.42 mi21585+198373+108373+1021642(Top 76%)8451(Top 69%)8451(Top 649%)
30K18.64 mi3.11 mi22013-4288631-2588631-25822994(Top 81%)9319(Top 76%)9319(Top 715%)
20M20.00 mi1.36 mi22178-1658740-1098740-10923606(Top 83%)9738(Top 80%)9738(Top 747%)
21M21.00 mi1.00 mi22471-2938931-1918931-19125527(Top 90%)10817(Top 88%)10817(Top 830%)
35K21.75 mi0.75 mi22576-1059005-749005-7424959(Top 88%)10563(Top 86%)10563(Top 811%)
23M23.00 mi1.25 mi22871-2959193-1889193-18825920(Top 91%)11058(Top 90%)11058(Top 849%)
24M24.00 mi1.00 mi22903-329236-439236-4323603(Top 83%)9927(Top 81%)9927(Top 762%)
40K24.85 mi0.85 mi22944-419278-429278-4223854(Top 84%)10098(Top 83%)10098(Top 775%)
25.2M25.20 mi0.35 mi23000-569309-319309-3124608(Top 87%)10469(Top 86%)10469(Top 803%)
Finish26.22 mi1.02 mi22978+229308+19308+122664(Top 80%)9499(Top 78%)9499(Top 729%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21433

Females

8241

F50-54

8241

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21879

Females

8533

F50-54

8533

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21433

Females

8241

F50-54

8241

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20723

Females

7905

F50-54

7905

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21421

Females

8282

F50-54

8282

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21642

Females

8451

F50-54

8451

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

22994

Females

9319

F50-54

9319

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23606

Females

9738

F50-54

9738

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

25527

Females

10817

F50-54

10817

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

24959

Females

10563

F50-54

10563

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

25920

Females

11058

F50-54

11058

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23603

Females

9927

F50-54

9927

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23854

Females

10098

F50-54

10098

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24608

Females

10469

F50-54

10469

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

22664

Females

9499

F50-54

9499

Passing Analysis

Category:
Athletes Passed
1658
Passed By
2164
Net Change
-506
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22472
5K → 10K400145+255#22472#22217
10K → 15K34871+277#22217#21940
15K → 20K38555+330#21940#21610
20K → Half2923+6#21610#21604
Half → 25K154135+19#21604#21585
25K → 30K87515-428#21585#22013
30K → 20M50215-165#22013#22178
20M → 21M21314-293#22178#22471
21M → 35K24129-105#22471#22576
35K → 23M19314-295#22576#22871
23M → 24M4779-32#22871#22903
24M → 40K4081-41#22903#22944
40K → 25.2M662-56#22944#23000
25.2M → Finish4826+22#23000#22978
TOTALS16582164-506
📊

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