Boston Marathon logo
BOSTON MARATHON 2025

Gijs Den Besten

Bib: 3147•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:11
Rank: #3793
Start → 5K
20:11 | 6:30/mi
10K· 6.21 mi
39:57
Rank: #3257 (+536)
5K → 10K
19:46 | 6:22/mi
15K· 9.32 mi
59:42
Rank: #3035 (+222)
10K → 15K
19:45 | 6:21/mi
20K· 12.43 mi
1:19:44
Rank: #2961 (+74)
15K → 20K
20:02 | 6:27/mi
Half· 13.11 mi
1:24:05
Rank: #2950 (+11)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:40
Rank: #2836 (+114)
Half → 25K
15:35 | 6:26/mi
30K· 18.64 mi
2:00:03
Rank: #2663 (+173)
25K → 30K
20:23 | 6:34/mi
20M
2:08:55
Rank: #2549 (+114)
30K → 20M
8:52 | 6:31/mi
21M
2:15:42
Rank: #2448 (+101)
20M → 21M
6:47 | 6:47/mi
35K· 21.75 mi
2:20:26
Rank: #2386 (+62)
21M → 35K
4:44 | 6:20/mi
23M
2:28:39
Rank: #2323 (+63)
35K → 23M
8:13 | 6:34/mi
24M
2:35:03
Rank: #2276 (+47)
23M → 24M
6:24 | 6:24/mi
40K· 24.85 mi
2:40:38
Rank: #2212 (+64)
24M → 40K
5:35 | 6:32/mi
25.2M
2:43:02
Rank: #2186 (+26)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:49:24
Rank: #2149 (+37)
25.2M → Finish
6:22 | 6:15/mi

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
Time1:24:05
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:25:19
Pace6:30 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3320:116:3020:11
6:30
-
10K
6.21 mi10:41:1939:576:2619:46
6:22
-0:08
15K
9.32 mi11:01:0459:426:2419:45
6:21
-0:01
20K
12.43 mi11:21:061:19:446:2520:02
6:27
+0:06
Half
13.11 mi11:25:271:24:056:254:21
6:23
-0:04
25K
15.53 mi11:41:021:39:406:2515:35
6:26
+0:03
30K
18.64 mi12:01:252:00:036:2620:23
6:34
+0:08
20M
20.00 mi12:10:172:08:556:278:52
6:31
-0:03
21M
21.00 mi12:17:042:15:426:286:47
6:47
+0:16
35K
21.75 mi12:21:482:20:266:274:44
6:20
-0:27
23M
23.00 mi12:30:012:28:396:288:13
6:34
+0:14
24M
24.00 mi12:36:252:35:036:286:24
6:24
-0:10
40K
24.85 mi12:42:002:40:386:285:35
6:32
+0:08
25.2M
25.20 mi12:44:242:43:026:282:24
6:58
+0:26
Finish
26.22 mi12:50:462:49:246:286:22
6:15
-0:43

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

6:15 /mi

Average Pace

6:28 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:00

99% of race

Time at Steady Pace

2:24

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:21:3320:116:3020:11
6:30
#3793
10K
6.21 mi10:41:1939:576:2619:46
6:22
#3257
15K
9.32 mi11:01:0459:426:2419:45
6:21
#3035
20K
12.43 mi11:21:061:19:446:2520:02
6:27
#2961
Half
13.11 mi11:25:271:24:056:254:21
6:23
#2950
25K
15.53 mi11:41:021:39:406:2515:35
6:26
#2836
30K
18.64 mi12:01:252:00:036:2620:23
6:34
#2663
20M
20.00 mi12:10:172:08:556:278:52
6:31
#2549
21M
21.00 mi12:17:042:15:426:286:47
6:47
#2448
35K
21.75 mi12:21:482:20:266:274:44
6:20
#2386
23M
23.00 mi12:30:012:28:396:288:13
6:34
#2323
24M
24.00 mi12:36:252:35:036:286:24
6:24
#2276
40K
24.85 mi12:42:002:40:386:285:35
6:32
#2212
25.2M
25.20 mi12:44:242:43:026:282:24
6:58
#2186
Finish
26.22 mi12:50:462:49:246:286:22
6:15
#2149
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3793358835882663(Top 9%)2537(Top 16%)2537(Top 45%)
10K6.21 mi3.10 mi3257+5363094+4943094+4942792(Top 10%)2658(Top 17%)2658(Top 47%)
15K9.32 mi3.11 mi3035+2222889+2052889+2052663(Top 9%)2537(Top 16%)2537(Top 45%)
20K12.43 mi3.11 mi2961+742821+682821+682801(Top 10%)2666(Top 17%)2666(Top 47%)
Half13.11 mi0.68 mi2950+112811+102811+102876(Top 10%)2743(Top 17%)2743(Top 49%)
25K15.53 mi2.42 mi2836+1142706+1052706+1052488(Top 9%)2366(Top 15%)2366(Top 42%)
30K18.64 mi3.11 mi2663+1732542+1642542+1642234(Top 8%)2113(Top 13%)2113(Top 37%)
20M20.00 mi1.36 mi2549+1142433+1092433+1091712(Top 6%)1618(Top 10%)1618(Top 29%)
21M21.00 mi1.00 mi2448+1012335+982335+981474(Top 5%)1390(Top 9%)1390(Top 25%)
35K21.75 mi0.75 mi2386+622275+602275+601718(Top 6%)1612(Top 10%)1612(Top 29%)
23M23.00 mi1.25 mi2323+632215+602215+601686(Top 6%)1575(Top 10%)1575(Top 28%)
24M24.00 mi1.00 mi2276+472166+492166+491650(Top 6%)1537(Top 10%)1537(Top 27%)
40K24.85 mi0.85 mi2212+642102+642102+641713(Top 6%)1583(Top 10%)1583(Top 28%)
25.2M25.20 mi0.35 mi2186+262077+252077+251364(Top 5%)1251(Top 8%)1251(Top 22%)
Finish26.22 mi1.02 mi2149+372039+382039+381682(Top 6%)1558(Top 10%)1558(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2663

Males

2537

M18-39

2537

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2792

Males

2658

M18-39

2658

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2663

Males

2537

M18-39

2537

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2801

Males

2666

M18-39

2666

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2876

Males

2743

M18-39

2743

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2488

Males

2366

M18-39

2366

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2234

Males

2113

M18-39

2113

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1712

Males

1618

M18-39

1618

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1474

Males

1390

M18-39

1390

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1718

Males

1612

M18-39

1612

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1686

Males

1575

M18-39

1575

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1650

Males

1537

M18-39

1537

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1713

Males

1583

M18-39

1583

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1364

Males

1251

M18-39

1251

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1682

Males

1558

M18-39

1558

Passing Analysis

Category:
Athletes Passed
1820
Passed By
176
Net Change
+1644
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3793
5K → 10K54711+536#3793#3257
10K → 15K23311+222#3257#3035
15K → 20K11844+74#3035#2961
20K → Half198+11#2961#2950
Half → 25K13016+114#2950#2836
25K → 30K19219+173#2836#2663
30K → 20M1217+114#2663#2549
20M → 21M1054+101#2549#2448
21M → 35K686+62#2448#2386
35K → 23M7613+63#2386#2323
23M → 24M5912+47#2323#2276
24M → 40K684+64#2276#2212
40K → 25.2M315+26#2212#2186
25.2M → Finish5316+37#2186#2149
TOTALS1820176+1644
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing