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BOSTON MARATHON 2025

Shelagh Vozzella

Bib: 26615•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
10:32/mi
32:42
↑ 97↓ 3451.5%
10K· 6.21 mi
11:00/mi
1:06:52
↑ 79↓ 1380.4%
15K· 9.32 mi
11:08/mi
1:41:28
↑ 67↓ 78
20K· 12.43 mi
11:30/mi
2:17:12
↑ 106↓ 860.1%
Half· 13.11 mi
10:46/mi
2:24:33
↑ 19↓ 370.5%
25K· 15.53 mi
12:39/mi
2:55:13
↑ 66↓ 880.2%
30K· 18.64 mi
12:04/mi
3:32:43
↑ 181↓ 1480.2%
20M
12:28/mi
3:49:40
↑ 64↓ 500.2%
21M
15:28/mi
4:05:08
↑ 106↓ 241.6%
35K· 21.75 mi
11:38/mi
4:13:50
↑ 17↓ 861.7%
23M
11:36/mi
4:28:22
↑ 23↓ 630.6%
24M
11:57/mi
4:40:18
↓ 821.3%
40K· 24.85 mi
11:57/mi
4:50:31
↓ 200.3%
25.2M
13:46/mi
4:55:16
↑ 13↓ 160.2%
Finish· 26.22 mi
11:30/mi
5:06:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:24:33
Pace11:02 /mi
2nd Half
Distance13.11 mi
Time2:42:26
Pace12:23 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:1132:4210:3232:42
10:32
-
10K
6.21 mi12:33:211:06:5210:4634:10
11:00
+0:28
15K
9.32 mi13:07:571:41:2810:5334:36
11:08
+0:08
20K
12.43 mi13:43:412:17:1211:0235:44
11:30
+0:22
Half
13.11 mi13:51:022:24:3311:027:21
10:46
-0:44
25K
15.53 mi14:21:422:55:1311:1730:40
12:39
+1:53
30K
18.64 mi14:59:123:32:4311:2537:30
12:04
-0:35
20M
20.00 mi15:16:093:49:4011:2916:57
12:28
+0:24
21M
21.00 mi15:31:374:05:0811:4015:28
15:28
+3:00
35K
21.75 mi15:40:194:13:5011:408:42
11:38
-3:50
23M
23.00 mi15:54:514:28:2211:4014:32
11:36
-0:02
24M
24.00 mi16:06:474:40:1811:4111:56
11:57
+0:21
40K
24.85 mi16:17:004:50:3111:4110:13
11:57
0:00
25.2M
25.20 mi16:21:454:55:1611:434:45
13:46
+1:49
Finish
26.22 mi16:33:285:06:5911:4311:43
11:30
-2:16

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

10:32 /mi

Average Pace

11:43 /mi

Slowest Pace

15:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:13

24% of race

Time at Steady Pace

2:44:56

54% of race

Time at Slower Pace

1:07:50

22% of race

Average Pace: 11:42 /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 mi11:59:1132:4210:3232:42
10:32
#26816
10K
6.21 mi12:33:211:06:5210:4634:10
11:00
#26954
15K
9.32 mi13:07:571:41:2810:5334:36
11:08
#26925
20K
12.43 mi13:43:412:17:1211:0235:44
11:30
#26832
Half
13.11 mi13:51:022:24:3311:027:21
10:46
#26802
25K
15.53 mi14:21:422:55:1311:1730:40
12:39
#26889
30K
18.64 mi14:59:123:32:4311:2537:30
12:04
#26667
20M
20.00 mi15:16:093:49:4011:2916:57
12:28
#26611
21M
21.00 mi15:31:374:05:0811:4015:28
15:28
#26707
35K
21.75 mi15:40:194:13:5011:408:42
11:38
#26664
23M
23.00 mi15:54:514:28:2211:4014:32
11:36
#26559
24M
24.00 mi16:06:474:40:1811:4111:56
11:57
#26533
40K
24.85 mi16:17:004:50:3111:4110:13
11:57
#26508
25.2M
25.20 mi16:21:454:55:1611:434:45
13:46
#26504
Finish
26.22 mi16:33:285:06:5911:4311:43
11:30
#26496
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26816112201122026847(Top 95%)11283(Top 92%)11283(Top 206%)
10K6.21 mi3.10 mi26954-13811318-9811318-9827057(Top 95%)11403(Top 93%)11403(Top 209%)
15K9.32 mi3.11 mi26925+2911311+711311+726847(Top 95%)11283(Top 92%)11283(Top 206%)
20K12.43 mi3.11 mi26832+9311261+5011261+5026631(Top 94%)11175(Top 91%)11175(Top 204%)
Half13.11 mi0.68 mi26802+3011245+1611245+1626193(Top 92%)10935(Top 89%)10935(Top 200%)
25K15.53 mi2.42 mi26889-8711315-7011315-7027041(Top 95%)11451(Top 94%)11451(Top 209%)
30K18.64 mi3.11 mi26667+22211202+11311202+11325680(Top 90%)10778(Top 88%)10778(Top 197%)
20M20.00 mi1.36 mi26611+5611180+2211180+2225872(Top 91%)10944(Top 89%)10944(Top 200%)
21M21.00 mi1.00 mi26707-9611242-6211242-6227499(Top 97%)11815(Top 97%)11815(Top 216%)
35K21.75 mi0.75 mi26664+4311230+1211230+1225292(Top 89%)10743(Top 88%)10743(Top 196%)
23M23.00 mi1.25 mi26559+10511187+4311187+4324418(Top 86%)10309(Top 84%)10309(Top 188%)
24M24.00 mi1.00 mi26533+2611174+1311174+1325598(Top 90%)10933(Top 89%)10933(Top 200%)
40K24.85 mi0.85 mi26508+2511162+1211162+1224821(Top 87%)10589(Top 87%)10589(Top 194%)
25.2M25.20 mi0.35 mi26504+4111621116225985(Top 91%)11173(Top 91%)11173(Top 204%)
Finish26.22 mi1.02 mi26496+811160+211160+226122(Top 92%)11208(Top 92%)11208(Top 205%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

26847

Females

11283

F18-39

11283

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

27057

Females

11403

F18-39

11403

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

26847

Females

11283

F18-39

11283

15K→20K

9.3 - 12.4 mi

Top 94%
×5story building
+106ft-86ft

Overall

26631

Females

11175

F18-39

11175

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

26193

Females

10935

F18-39

10935

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

27041

Females

11451

F18-39

11451

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25680

Females

10778

F18-39

10778

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

25872

Females

10944

F18-39

10944

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

27499

Females

11815

F18-39

11815

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

25292

Females

10743

F18-39

10743

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

24418

Females

10309

F18-39

10309

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25598

Females

10933

F18-39

10933

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24821

Females

10589

F18-39

10589

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25985

Females

11173

F18-39

11173

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

26122

Females

11208

F18-39

11208

Passing Analysis

Category:
Athletes Passed
1071
Passed By
751
Net Change
+320
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26816
5K → 10K108246-138#26816#26954
10K → 15K132103+29#26954#26925
15K → 20K14754+93#26925#26832
20K → Half333+30#26832#26802
Half → 25K43130-87#26802#26889
25K → 30K23715+222#26889#26667
30K → 20M7418+56#26667#26611
20M → 21M15111-96#26611#26707
21M → 35K518+43#26707#26664
35K → 23M1083+105#26664#26559
23M → 24M4317+26#26559#26533
24M → 40K349+25#26533#26508
40K → 25.2M1814+4#26508#26504
25.2M → Finish2820+8#26504#26496
TOTALS1071751+320
📊

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