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BOSTON MARATHON 2025

Sarah Swift

Bib: 19308•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Masters (Masters Women)
#0 / 6759
Top 8%
Division (F50-54)
#0 / 1303
Top 3%
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
7:22/mi
22:52
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
46:08
↑ 79↓ 1380.4%
15K· 9.32 mi
7:32/mi
1:09:31
↑ 67↓ 78
20K· 12.43 mi
7:42/mi
1:33:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:38:35
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:57:04
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:21:32
↑ 181↓ 1480.2%
20M
7:49/mi
2:32:10
↑ 64↓ 500.2%
21M
8:25/mi
2:40:35
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:46:08
↑ 17↓ 861.7%
23M
7:48/mi
2:55:54
↑ 23↓ 630.6%
24M
7:34/mi
3:03:28
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:10:16
↓ 200.3%
25.2M
7:58/mi
3:13:01
↑ 13↓ 160.2%
Finish· 26.22 mi
7:17/mi
3:20:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:35
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5922:527:2222:52
7:22
-
10K
6.21 mi11:39:1546:087:2523:16
7:29
+0:07
15K
9.32 mi12:02:381:09:317:2823:23
7:32
+0:03
20K
12.43 mi12:26:341:33:277:3123:56
7:42
+0:10
Half
13.11 mi12:31:421:38:357:315:08
7:31
-0:11
25K
15.53 mi12:50:111:57:047:3218:29
7:37
+0:06
30K
18.64 mi13:14:392:21:327:3624:28
7:53
+0:16
20M
20.00 mi13:25:172:32:107:3610:38
7:49
-0:04
21M
21.00 mi13:33:422:40:357:398:25
8:25
+0:36
35K
21.75 mi13:39:152:46:087:385:33
7:25
-1:00
23M
23.00 mi13:49:012:55:547:399:46
7:48
+0:23
24M
24.00 mi13:56:353:03:287:397:34
7:34
-0:14
40K
24.85 mi14:03:233:10:167:396:48
7:58
+0:24
25.2M
25.20 mi14:06:083:13:017:402:45
7:58
0:00
Finish
26.22 mi14:13:333:20:267:397:25
7:17
-0:41

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

7:17 /mi

Average Pace

7:39 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:01

96% of race

Time at Steady Pace

8:25

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi11:15:5922:527:2222:52
7:22
#10962
10K
6.21 mi11:39:1546:087:2523:16
7:29
#11466
15K
9.32 mi12:02:381:09:317:2823:23
7:32
#11607
20K
12.43 mi12:26:341:33:277:3123:56
7:42
#11803
Half
13.11 mi12:31:421:38:357:315:08
7:31
#11811
25K
15.53 mi12:50:111:57:047:3218:29
7:37
#11649
30K
18.64 mi13:14:392:21:327:3624:28
7:53
#11379
20M
20.00 mi13:25:172:32:107:3610:38
7:49
#11156
21M
21.00 mi13:33:422:40:357:398:25
8:25
#11048
35K
21.75 mi13:39:152:46:087:385:33
7:25
#10911
23M
23.00 mi13:49:012:55:547:399:46
7:48
#10722
24M
24.00 mi13:56:353:03:287:397:34
7:34
#10577
40K
24.85 mi14:03:233:10:167:396:48
7:58
#10531
25.2M
25.20 mi14:06:083:13:017:402:45
7:58
#10421
Finish
26.22 mi14:13:333:20:267:397:25
7:17
#10275
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi109622265226512005(Top 42%)2900(Top 24%)2900(Top 223%)
10K6.21 mi3.10 mi11466-5042536-2712536-27112011(Top 42%)2822(Top 23%)2822(Top 217%)
15K9.32 mi3.11 mi11607-1412623-872623-8712005(Top 42%)2900(Top 24%)2900(Top 223%)
20K12.43 mi3.11 mi11803-1962765-1422765-14212441(Top 44%)3238(Top 26%)3238(Top 249%)
Half13.11 mi0.68 mi11811-82781-162781-1611932(Top 42%)2882(Top 24%)2882(Top 221%)
25K15.53 mi2.42 mi11649+1622728+532728+5310957(Top 39%)2562(Top 21%)2562(Top 197%)
30K18.64 mi3.11 mi11379+2702664+642664+6410463(Top 37%)2521(Top 21%)2521(Top 193%)
20M20.00 mi1.36 mi11156+2232587+772587+779216(Top 32%)2086(Top 17%)2086(Top 160%)
21M21.00 mi1.00 mi11048+1082566+212566+219969(Top 35%)2592(Top 21%)2592(Top 199%)
35K21.75 mi0.75 mi10911+1372531+352531+358114(Top 29%)1740(Top 14%)1740(Top 134%)
23M23.00 mi1.25 mi10722+1892472+592472+598615(Top 30%)2093(Top 17%)2093(Top 161%)
24M24.00 mi1.00 mi10577+1452428+442428+448203(Top 29%)1957(Top 16%)1957(Top 150%)
40K24.85 mi0.85 mi10531+46242824289935(Top 35%)2915(Top 24%)2915(Top 224%)
25.2M25.20 mi0.35 mi10421+1102397+312397+315693(Top 20%)1156(Top 9%)1156(Top 89%)
Finish26.22 mi1.02 mi10275+1462362+352362+357659(Top 27%)1931(Top 16%)1931(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

12005

Females

2900

F50-54

2900

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

12011

Females

2822

F50-54

2822

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

12005

Females

2900

F50-54

2900

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12441

Females

3238

F50-54

3238

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11932

Females

2882

F50-54

2882

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10957

Females

2562

F50-54

2562

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10463

Females

2521

F50-54

2521

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

9216

Females

2086

F50-54

2086

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9969

Females

2592

F50-54

2592

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8114

Females

1740

F50-54

1740

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8615

Females

2093

F50-54

2093

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8203

Females

1957

F50-54

1957

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9935

Females

2915

F50-54

2915

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5693

Females

1156

F50-54

1156

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7659

Females

1931

F50-54

1931

Passing Analysis

Category:
Athletes Passed
2251
Passed By
1564
Net Change
+687
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10962
5K → 10K97601-504#10962#11466
10K → 15K134275-141#11466#11607
15K → 20K121317-196#11607#11803
20K → Half3240-8#11803#11811
Half → 25K23270+162#11811#11649
25K → 30K36595+270#11649#11379
30K → 20M24017+223#11379#11156
20M → 21M15345+108#11156#11048
21M → 35K1436+137#11048#10911
35K → 23M21425+189#10911#10722
23M → 24M15510+145#10722#10577
24M → 40K8438+46#10577#10531
40K → 25.2M1122+110#10531#10421
25.2M → Finish16923+146#10421#10275
TOTALS22511564+687
📊

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