Boston Marathon logo
BOSTON MARATHON 2025

Lauren Baldwin

Bib: 27461•F

MA

0:00
0:00
/ mi
Be the first to cheer!
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
9:47/mi
30:24
↑ 97↓ 3451.5%
10K· 6.21 mi
9:54/mi
1:01:09
↑ 79↓ 1380.4%
15K· 9.32 mi
10:04/mi
1:32:24
↑ 67↓ 78
20K· 12.43 mi
12:19/mi
2:10:39
↑ 106↓ 860.1%
Half· 13.11 mi
10:10/mi
2:17:35
↑ 19↓ 370.5%
25K· 15.53 mi
11:45/mi
2:46:04
↑ 66↓ 880.2%
30K· 18.64 mi
12:13/mi
3:24:02
↑ 181↓ 1480.2%
20M
15:02/mi
3:44:28
↑ 64↓ 500.2%
21M
14:07/mi
3:58:35
↑ 106↓ 241.6%
35K· 21.75 mi
12:17/mi
4:07:46
↑ 17↓ 861.7%
23M
13:06/mi
4:24:10
↑ 23↓ 630.6%
24M
12:50/mi
4:37:00
↓ 821.3%
40K· 24.85 mi
12:00/mi
4:47:16
↓ 200.3%
25.2M
12:43/mi
4:51:39
↑ 13↓ 160.2%
Finish· 26.22 mi
10:54/mi
5:02:45
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:35
Pace10:30 /mi
2nd Half
Distance13.11 mi
Time2:45:10
Pace12:36 /mi
📊Positive Split: 20.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0530:249:4730:24
9:47
-
10K
6.21 mi12:17:501:01:099:5030:45
9:54
+0:07
15K
9.32 mi12:49:051:32:249:5531:15
10:04
+0:10
20K
12.43 mi13:27:202:10:3910:3138:15
12:19
+2:15
Half
13.11 mi13:34:162:17:3510:306:56
10:10
-2:09
25K
15.53 mi14:02:452:46:0410:4128:29
11:45
+1:35
30K
18.64 mi14:40:433:24:0210:5737:58
12:13
+0:28
20M
20.00 mi15:01:093:44:2811:1320:26
15:02
+2:49
21M
21.00 mi15:15:163:58:3511:2214:07
14:07
-0:55
35K
21.75 mi15:24:274:07:4611:249:11
12:17
-1:50
23M
23.00 mi15:40:514:24:1011:2916:24
13:06
+0:49
24M
24.00 mi15:53:414:37:0011:3312:50
12:50
-0:16
40K
24.85 mi16:03:574:47:1611:3310:16
12:00
-0:50
25.2M
25.20 mi16:08:204:51:3911:344:23
12:43
+0:43
Finish
26.22 mi16:19:265:02:4511:3311:06
10:54
-1:49

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

9:47 /mi

Average Pace

11:33 /mi

Slowest Pace

15:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:26

36% of race

Time at Steady Pace

2:21:22

47% of race

Time at Slower Pace

50:57

17% of race

Average Pace: 11:33 /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 mi11:47:0530:249:4730:24
9:47
#25048
10K
6.21 mi12:17:501:01:099:5030:45
9:54
#25055
15K
9.32 mi12:49:051:32:249:5531:15
10:04
#25081
20K
12.43 mi13:27:202:10:3910:3138:15
12:19
#25990
Half
13.11 mi13:34:162:17:3510:306:56
10:10
#25946
25K
15.53 mi14:02:452:46:0410:4128:29
11:45
#26021
30K
18.64 mi14:40:433:24:0210:5737:58
12:13
#25970
20M
20.00 mi15:01:093:44:2811:1320:26
15:02
#26247
21M
21.00 mi15:15:163:58:3511:2214:07
14:07
#26289
35K
21.75 mi15:24:274:07:4611:249:11
12:17
#26294
23M
23.00 mi15:40:514:24:1011:2916:24
13:06
#26316
24M
24.00 mi15:53:414:37:0011:3312:50
12:50
#26340
40K
24.85 mi16:03:574:47:1611:3310:16
12:00
#26297
25.2M
25.20 mi16:08:204:51:3911:344:23
12:43
#26282
Finish
26.22 mi16:19:265:02:4511:3311:06
10:54
#26260
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25048102361023625112(Top 88%)10284(Top 84%)10284(Top 188%)
10K6.21 mi3.10 mi25055-710260-2410260-2425080(Top 88%)10279(Top 84%)10279(Top 188%)
15K9.32 mi3.11 mi25081-2610265-510265-525112(Top 88%)10284(Top 84%)10284(Top 188%)
20K12.43 mi3.11 mi25990-90910782-51710782-51727364(Top 96%)11616(Top 95%)11616(Top 212%)
Half13.11 mi0.68 mi25946+4410762+2010762+2025160(Top 89%)10359(Top 85%)10359(Top 189%)
25K15.53 mi2.42 mi26021-7510811-4910811-4926154(Top 92%)10944(Top 89%)10944(Top 200%)
30K18.64 mi3.11 mi25970+5110807+410807+425843(Top 91%)10861(Top 89%)10861(Top 199%)
20M20.00 mi1.36 mi26247-27710976-16910976-16927880(Top 98%)11996(Top 98%)11996(Top 219%)
21M21.00 mi1.00 mi26289-4211012-3611012-3626339(Top 93%)11233(Top 92%)11233(Top 205%)
35K21.75 mi0.75 mi26294-511026-1411026-1426204(Top 92%)11196(Top 92%)11196(Top 205%)
23M23.00 mi1.25 mi26316-2211046-2011046-2026495(Top 93%)11346(Top 93%)11346(Top 207%)
24M24.00 mi1.00 mi26340-2411069-2311069-2326660(Top 94%)11453(Top 94%)11453(Top 209%)
40K24.85 mi0.85 mi26297+4311054+1511054+1524919(Top 88%)10637(Top 87%)10637(Top 194%)
25.2M25.20 mi0.35 mi26282+1511047+711047+724543(Top 86%)10451(Top 85%)10451(Top 191%)
Finish26.22 mi1.02 mi26260+2211039+811039+825144(Top 89%)10721(Top 88%)10721(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

25112

Females

10284

F18-39

10284

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

25080

Females

10279

F18-39

10279

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

25112

Females

10284

F18-39

10284

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

27364

Females

11616

F18-39

11616

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25160

Females

10359

F18-39

10359

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26154

Females

10944

F18-39

10944

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

25843

Females

10861

F18-39

10861

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27880

Females

11996

F18-39

11996

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

26339

Females

11233

F18-39

11233

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26204

Females

11196

F18-39

11196

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26495

Females

11346

F18-39

11346

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

26660

Females

11453

F18-39

11453

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

24919

Females

10637

F18-39

10637

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24543

Females

10451

F18-39

10451

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25144

Females

10721

F18-39

10721

Passing Analysis

Category:
Athletes Passed
779
Passed By
1991
Net Change
-1212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25048
5K → 10K183190-7#25048#25055
10K → 15K130156-26#25055#25081
15K → 20K7916-909#25081#25990
20K → Half517+44#25990#25946
Half → 25K53128-75#25946#26021
25K → 30K13584+51#26021#25970
30K → 20M11288-277#25970#26247
20M → 21M2870-42#26247#26289
21M → 35K1924-5#26289#26294
35K → 23M2749-22#26294#26316
23M → 24M2347-24#26316#26340
24M → 40K5411+43#26340#26297
40K → 25.2M194+15#26297#26282
25.2M → Finish3917+22#26282#26260
TOTALS7791991-1212
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing