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BOSTON MARATHON 2025

Natasha Vo

Bib: 21330•F

CA

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
8:33/mi
26:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
54:30
↑ 79↓ 1380.4%
15K· 9.32 mi
9:29/mi
1:23:59
↑ 67↓ 78
20K· 12.43 mi
10:30/mi
1:56:37
↑ 106↓ 860.1%
Half· 13.11 mi
10:19/mi
2:03:39
↑ 19↓ 370.5%
25K· 15.53 mi
11:02/mi
2:30:24
↑ 66↓ 880.2%
30K· 18.64 mi
12:11/mi
3:08:14
↑ 181↓ 1480.2%
20M
12:37/mi
3:25:23
↑ 64↓ 500.2%
21M
13:14/mi
3:38:37
↑ 106↓ 241.6%
35K· 21.75 mi
10:40/mi
3:46:36
↑ 17↓ 861.7%
23M
11:56/mi
4:01:32
↑ 23↓ 630.6%
24M
11:36/mi
4:13:08
↓ 821.3%
40K· 24.85 mi
11:28/mi
4:22:56
↓ 200.3%
25.2M
13:06/mi
4:27:27
↑ 13↓ 160.2%
Finish· 26.22 mi
10:41/mi
4:38:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:39
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:34:41
Pace11:48 /mi
📊Positive Split: 25.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2126:358:3326:35
8:33
-
10K
6.21 mi11:47:1654:308:4627:55
8:59
+0:26
15K
9.32 mi12:16:451:23:599:0129:29
9:29
+0:30
20K
12.43 mi12:49:231:56:379:2332:38
10:30
+1:01
Half
13.11 mi12:56:252:03:399:267:02
10:19
-0:11
25K
15.53 mi13:23:102:30:249:4126:45
11:02
+0:43
30K
18.64 mi14:01:003:08:1410:0637:50
12:11
+1:09
20M
20.00 mi14:18:093:25:2310:1617:09
12:37
+0:26
21M
21.00 mi14:31:233:38:3710:2513:14
13:14
+0:37
35K
21.75 mi14:39:223:46:3610:257:59
10:40
-2:34
23M
23.00 mi14:54:184:01:3210:3014:56
11:56
+1:16
24M
24.00 mi15:05:544:13:0810:3311:36
11:36
-0:20
40K
24.85 mi15:15:424:22:5610:359:48
11:28
-0:08
25.2M
25.20 mi15:20:134:27:2710:374:31
13:06
+1:38
Finish
26.22 mi15:31:064:38:2010:3710:53
10:41
-2:25

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

8:33 /mi

Average Pace

10:37 /mi

Slowest Pace

13:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:01

33% of race

Time at Steady Pace

1:39:39

36% of race

Time at Slower Pace

1:27:40

31% of race

Average Pace: 10:37 /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 mi11:19:2126:358:3326:35
8:33
#20216
10K
6.21 mi11:47:1654:308:4627:55
8:59
#21281
15K
9.32 mi12:16:451:23:599:0129:29
9:29
#22322
20K
12.43 mi12:49:231:56:379:2332:38
10:30
#23404
Half
13.11 mi12:56:252:03:399:267:02
10:19
#23560
25K
15.53 mi13:23:102:30:249:4126:45
11:02
#23934
30K
18.64 mi14:01:003:08:1410:0637:50
12:11
#24438
20M
20.00 mi14:18:093:25:2310:1617:09
12:37
#24622
21M
21.00 mi14:31:233:38:3710:2513:14
13:14
#24692
35K
21.75 mi14:39:223:46:3610:257:59
10:40
#24669
23M
23.00 mi14:54:184:01:3210:3014:56
11:56
#24690
24M
24.00 mi15:05:544:13:0810:3311:36
11:36
#24721
40K
24.85 mi15:15:424:22:5610:359:48
11:28
#24699
25.2M
25.20 mi15:20:134:27:2710:374:31
13:06
#24707
Finish
26.22 mi15:31:064:38:2010:3710:53
10:41
#24724
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi202167630763023708(Top 83%)9495(Top 78%)9495(Top 729%)
10K6.21 mi3.10 mi21281-10658207-5778207-57722314(Top 79%)8776(Top 72%)8776(Top 674%)
15K9.32 mi3.11 mi22322-10418766-5598766-55923708(Top 83%)9495(Top 78%)9495(Top 729%)
20K12.43 mi3.11 mi23404-10829344-5789344-57825196(Top 89%)10372(Top 85%)10372(Top 796%)
Half13.11 mi0.68 mi23560-1569437-939437-9325436(Top 90%)10508(Top 86%)10508(Top 806%)
25K15.53 mi2.42 mi23934-3749663-2269663-22625244(Top 89%)10434(Top 85%)10434(Top 801%)
30K18.64 mi3.11 mi24438-5049965-3029965-30225800(Top 91%)10838(Top 89%)10838(Top 832%)
20M20.00 mi1.36 mi24622-18410080-11510080-11526033(Top 92%)11030(Top 90%)11030(Top 847%)
21M21.00 mi1.00 mi24692-7010136-5610136-5625344(Top 89%)10732(Top 88%)10732(Top 824%)
35K21.75 mi0.75 mi24669+2310132+410132+423494(Top 83%)9803(Top 80%)9803(Top 752%)
23M23.00 mi1.25 mi24690-2110163-3110163-3125000(Top 88%)10601(Top 87%)10601(Top 814%)
24M24.00 mi1.00 mi24721-3110198-3510198-3525049(Top 88%)10654(Top 87%)10654(Top 818%)
40K24.85 mi0.85 mi24699+2210195+310195+324044(Top 85%)10188(Top 83%)10188(Top 782%)
25.2M25.20 mi0.35 mi24707-810204-910204-925123(Top 88%)10745(Top 88%)10745(Top 825%)
Finish26.22 mi1.02 mi24724-1710221-1710221-1724666(Top 87%)10492(Top 86%)10492(Top 805%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23708

Females

9495

F50-54

9495

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22314

Females

8776

F50-54

8776

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23708

Females

9495

F50-54

9495

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25196

Females

10372

F50-54

10372

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25436

Females

10508

F50-54

10508

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

25244

Females

10434

F50-54

10434

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

25800

Females

10838

F50-54

10838

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26033

Females

11030

F50-54

11030

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25344

Females

10732

F50-54

10732

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23494

Females

9803

F50-54

9803

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

25000

Females

10601

F50-54

10601

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

25049

Females

10654

F50-54

10654

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24044

Females

10188

F50-54

10188

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

25123

Females

10745

F50-54

10745

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24666

Females

10492

F50-54

10492

Passing Analysis

Category:
Athletes Passed
423
Passed By
4931
Net Change
-4508
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20216
5K → 10K391104-1065#20216#21281
10K → 15K341075-1041#21281#22322
15K → 20K191101-1082#22322#23404
20K → Half4160-156#23404#23560
Half → 25K39413-374#23560#23934
25K → 30K34538-504#23934#24438
30K → 20M19203-184#24438#24622
20M → 21M33103-70#24622#24692
21M → 35K4219+23#24692#24669
35K → 23M4970-21#24669#24690
23M → 24M3162-31#24690#24721
24M → 40K4523+22#24721#24699
40K → 25.2M1018-8#24699#24707
25.2M → Finish2542-17#24707#24724
TOTALS4234931-4508
📊

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