Boston Marathon logo
BOSTON MARATHON 2025

Jean Lendeborg

Bib: 31860•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
10:36/mi
32:56
↑ 97↓ 3451.5%
10K· 6.21 mi
10:43/mi
1:06:14
↑ 79↓ 1380.4%
15K· 9.32 mi
10:30/mi
1:38:50
↑ 67↓ 78
20K· 12.43 mi
11:01/mi
2:13:04
↑ 106↓ 860.1%
Half· 13.11 mi
11:17/mi
2:20:46
↑ 19↓ 370.5%
25K· 15.53 mi
12:45/mi
2:51:41
↑ 66↓ 880.2%
30K· 18.64 mi
14:39/mi
3:37:13
↑ 181↓ 1480.2%
20M
16:18/mi
3:59:22
↑ 64↓ 500.2%
21M
15:48/mi
4:15:10
↑ 106↓ 241.6%
35K· 21.75 mi
11:35/mi
4:23:50
↑ 17↓ 861.7%
23M
11:31/mi
4:38:15
↑ 23↓ 630.6%
24M
13:34/mi
4:51:49
↓ 821.3%
40K· 24.85 mi
17:01/mi
5:06:22
↓ 200.3%
25.2M
17:12/mi
5:12:18
↑ 13↓ 160.2%
Finish· 26.22 mi
11:27/mi
5:23:58
↑ 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
Time2:20:46
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time3:03:12
Pace13:59 /mi
📊Positive Split: 30.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:0032:5610:3632:56
10:36
-
10K
6.21 mi12:32:181:06:1410:4033:18
10:43
+0:07
15K
9.32 mi13:04:541:38:5010:3632:36
10:30
-0:13
20K
12.43 mi13:39:082:13:0410:4234:14
11:01
+0:31
Half
13.11 mi13:46:502:20:4610:447:42
11:17
+0:16
25K
15.53 mi14:17:452:51:4111:0330:55
12:45
+1:28
30K
18.64 mi15:03:173:37:1311:3945:32
14:39
+1:54
20M
20.00 mi15:25:263:59:2211:5822:09
16:18
+1:39
21M
21.00 mi15:41:144:15:1012:0915:48
15:48
-0:30
35K
21.75 mi15:49:544:23:5012:088:40
11:35
-4:13
23M
23.00 mi16:04:194:38:1512:0614:25
11:31
-0:04
24M
24.00 mi16:17:534:51:4912:1013:34
13:34
+2:03
40K
24.85 mi16:32:265:06:2212:2014:33
17:01
+3:27
25.2M
25.20 mi16:38:225:12:1812:245:56
17:12
+0:11
Finish
26.22 mi16:50:025:23:5812:2211:40
11:27
-5:45

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

10:30 /mi

Average Pace

12:22 /mi

Slowest Pace

17:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:26:26

64% of race

Time at Slower Pace

1:57:32

36% of race

Average Pace: 12:21 /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 mi11:59:0032:5610:3632:56
10:36
#26964
10K
6.21 mi12:32:181:06:1410:4033:18
10:43
#26783
15K
9.32 mi13:04:541:38:5010:3632:36
10:30
#26468
20K
12.43 mi13:39:082:13:0410:4234:14
11:01
#26333
Half
13.11 mi13:46:502:20:4610:447:42
11:17
#26376
25K
15.53 mi14:17:452:51:4111:0330:55
12:45
#26567
30K
18.64 mi15:03:173:37:1311:3945:32
14:39
#26961
20M
20.00 mi15:25:263:59:2211:5822:09
16:18
#27154
21M
21.00 mi15:41:144:15:1012:0915:48
15:48
#27204
35K
21.75 mi15:49:544:23:5012:088:40
11:35
#27154
23M
23.00 mi16:04:194:38:1512:0614:25
11:31
#27069
24M
24.00 mi16:17:534:51:4912:1013:34
13:34
#27090
40K
24.85 mi16:32:265:06:2212:2014:33
17:01
#27200
25.2M
25.20 mi16:38:225:12:1812:245:56
17:12
#27240
Finish
26.22 mi16:50:025:23:5812:2211:40
11:27
#27205
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26964155911559125928(Top 91%)15116(Top 94%)15116(Top 268%)
10K6.21 mi3.10 mi26783+18115501+9015501+9026638(Top 94%)15430(Top 96%)15430(Top 273%)
15K9.32 mi3.11 mi26468+31515369+13215369+13225928(Top 91%)15116(Top 94%)15116(Top 268%)
20K12.43 mi3.11 mi26333+13515299+7015299+7026038(Top 92%)15138(Top 94%)15138(Top 268%)
Half13.11 mi0.68 mi26376-4315316-1715316-1726859(Top 95%)15459(Top 96%)15459(Top 274%)
25K15.53 mi2.42 mi26567-19115381-6515381-6527122(Top 95%)15555(Top 97%)15555(Top 276%)
30K18.64 mi3.11 mi26961-39415522-14115522-14127882(Top 98%)15821(Top 98%)15821(Top 280%)
20M20.00 mi1.36 mi27154-19315591-6915591-6928224(Top 99%)15995(Top 99%)15995(Top 283%)
21M21.00 mi1.00 mi27204-5015603-1215603-1227718(Top 98%)15731(Top 98%)15731(Top 279%)
35K21.75 mi0.75 mi27154+5015577+2615577+2625237(Top 89%)14467(Top 90%)14467(Top 256%)
23M23.00 mi1.25 mi27069+8515536+4115536+4124282(Top 85%)13992(Top 87%)13992(Top 248%)
24M24.00 mi1.00 mi27090-2115532+415532+427382(Top 96%)15475(Top 96%)15475(Top 274%)
40K24.85 mi0.85 mi27200-11015576-4415576-4428247(Top 99%)15998(Top 99%)15998(Top 284%)
25.2M25.20 mi0.35 mi27240-4015589-1315589-1328102(Top 99%)15885(Top 99%)15885(Top 282%)
Finish26.22 mi1.02 mi27205+3515569+2015569+2026066(Top 92%)14822(Top 92%)14822(Top 263%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

25928

Males

15116

M18-39

15116

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26638

Males

15430

M18-39

15430

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

25928

Males

15116

M18-39

15116

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

26038

Males

15138

M18-39

15138

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

26859

Males

15459

M18-39

15459

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

27122

Males

15555

M18-39

15555

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

27882

Males

15821

M18-39

15821

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

28224

Males

15995

M18-39

15995

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

27718

Males

15731

M18-39

15731

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

25237

Males

14467

M18-39

14467

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24282

Males

13992

M18-39

13992

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

27382

Males

15475

M18-39

15475

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28247

Males

15998

M18-39

15998

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28102

Males

15885

M18-39

15885

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

26066

Males

14822

M18-39

14822

Passing Analysis

Category:
Athletes Passed
1054
Passed By
1295
Net Change
-241
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26964
5K → 10K26079+181#26964#26783
10K → 15K32712+315#26783#26468
15K → 20K19560+135#26468#26333
20K → Half952-43#26333#26376
Half → 25K37228-191#26376#26567
25K → 30K15409-394#26567#26961
30K → 20M5198-193#26961#27154
20M → 21M1060-50#27154#27204
21M → 35K522+50#27204#27154
35K → 23M872+85#27154#27069
23M → 24M1334-21#27069#27090
24M → 40K3113-110#27090#27200
40K → 25.2M141-40#27200#27240
25.2M → Finish405+35#27240#27205
TOTALS10541295-241
📊

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