Boston Marathon logo
BOSTON MARATHON 2025

John Grupa

Bib: 6370•M

MN

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:01
Rank: #6018
Start → 5K
21:01 | 6:46/mi
10K· 6.21 mi
41:37
Rank: #5327 (+691)
5K → 10K
20:36 | 6:38/mi
15K· 9.32 mi
1:01:59
Rank: #4792 (+535)
10K → 15K
20:22 | 6:33/mi
20K· 12.43 mi
1:22:18
Rank: #4346 (+446)
15K → 20K
20:19 | 6:32/mi
Half· 13.11 mi
1:26:42
Rank: #4272 (+74)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:42:28
Rank: #3963 (+309)
Half → 25K
15:46 | 6:30/mi
30K· 18.64 mi
2:03:06
Rank: #3672 (+291)
25K → 30K
20:38 | 6:38/mi
20M
2:12:01
Rank: #3481 (+191)
30K → 20M
8:55 | 6:34/mi
21M
2:19:00
Rank: #3366 (+115)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:23:53
Rank: #3297 (+69)
21M → 35K
4:53 | 6:32/mi
23M
2:32:09
Rank: #3138 (+159)
35K → 23M
8:16 | 6:36/mi
24M
2:38:40
Rank: #3044 (+94)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:44:28
Rank: #2990 (+54)
24M → 40K
5:48 | 6:47/mi
25.2M
2:46:59
Rank: #2963 (+27)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:53:33
Rank: #2913 (+50)
25.2M → Finish
6:34 | 6:27/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 Half⚖️ Balanced
Distance13.11 mi
Time1:26:42
Pace6:37 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:26:51
Pace6:38 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0721:016:4621:01
6:46
-
10K
6.21 mi10:46:4341:376:4220:36
6:38
-0:08
15K
9.32 mi11:07:051:01:596:3920:22
6:33
-0:05
20K
12.43 mi11:27:241:22:186:3720:19
6:32
-0:01
Half
13.11 mi11:31:481:26:426:374:24
6:27
-0:05
25K
15.53 mi11:47:341:42:286:3615:46
6:30
+0:03
30K
18.64 mi12:08:122:03:066:3620:38
6:38
+0:08
20M
20.00 mi12:17:072:12:016:368:55
6:34
-0:04
21M
21.00 mi12:24:062:19:006:376:59
6:59
+0:25
35K
21.75 mi12:28:592:23:536:374:53
6:32
-0:27
23M
23.00 mi12:37:152:32:096:378:16
6:36
+0:04
24M
24.00 mi12:43:462:38:406:376:31
6:31
-0:05
40K
24.85 mi12:49:342:44:286:375:48
6:47
+0:16
25.2M
25.20 mi12:52:052:46:596:382:31
7:18
+0:31
Finish
26.22 mi12:58:392:53:336:376:34
6:27
-0:51

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

6:27 /mi

Average Pace

6:37 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:02

99% of race

Time at Steady Pace

2:31

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:26:0721:016:4621:01
6:46
#6018
10K
6.21 mi10:46:4341:376:4220:36
6:38
#5327
15K
9.32 mi11:07:051:01:596:3920:22
6:33
#4792
20K
12.43 mi11:27:241:22:186:3720:19
6:32
#4346
Half
13.11 mi11:31:481:26:426:374:24
6:27
#4272
25K
15.53 mi11:47:341:42:286:3615:46
6:30
#3963
30K
18.64 mi12:08:122:03:066:3620:38
6:38
#3672
20M
20.00 mi12:17:072:12:016:368:55
6:34
#3481
21M
21.00 mi12:24:062:19:006:376:59
6:59
#3366
35K
21.75 mi12:28:592:23:536:374:53
6:32
#3297
23M
23.00 mi12:37:152:32:096:378:16
6:36
#3138
24M
24.00 mi12:43:462:38:406:376:31
6:31
#3044
40K
24.85 mi12:49:342:44:286:375:48
6:47
#2990
25.2M
25.20 mi12:52:052:46:596:382:31
7:18
#2963
Finish
26.22 mi12:58:392:53:336:376:34
6:27
#2913
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6018552655263905(Top 14%)3681(Top 23%)3681(Top 65%)
10K6.21 mi3.10 mi5327+6914938+5884938+5884684(Top 16%)4384(Top 27%)4384(Top 78%)
15K9.32 mi3.11 mi4792+5354481+4574481+4573905(Top 14%)3681(Top 23%)3681(Top 65%)
20K12.43 mi3.11 mi4346+4464083+3984083+3983337(Top 12%)3162(Top 20%)3162(Top 56%)
Half13.11 mi0.68 mi4272+744013+704013+703327(Top 12%)3153(Top 20%)3153(Top 56%)
25K15.53 mi2.42 mi3963+3093730+2833730+2832902(Top 10%)2760(Top 17%)2760(Top 49%)
30K18.64 mi3.11 mi3672+2913466+2643466+2642598(Top 9%)2459(Top 15%)2459(Top 44%)
20M20.00 mi1.36 mi3481+1913288+1783288+1781864(Top 7%)1764(Top 11%)1764(Top 31%)
21M21.00 mi1.00 mi3366+1153181+1073181+1072193(Top 8%)2049(Top 13%)2049(Top 36%)
35K21.75 mi0.75 mi3297+693114+673114+672579(Top 9%)2398(Top 15%)2398(Top 43%)
23M23.00 mi1.25 mi3138+1592965+1492965+1491836(Top 6%)1717(Top 11%)1717(Top 30%)
24M24.00 mi1.00 mi3044+942877+882877+882113(Top 7%)1960(Top 12%)1960(Top 35%)
40K24.85 mi0.85 mi2990+542824+532824+532742(Top 10%)2486(Top 15%)2486(Top 44%)
25.2M25.20 mi0.35 mi2963+272799+252799+252472(Top 9%)2206(Top 14%)2206(Top 39%)
Finish26.22 mi1.02 mi2913+502750+492750+492509(Top 9%)2278(Top 14%)2278(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3905

Males

3681

M18-39

3681

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4684

Males

4384

M18-39

4384

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3905

Males

3681

M18-39

3681

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3337

Males

3162

M18-39

3162

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3327

Males

3153

M18-39

3153

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2902

Males

2760

M18-39

2760

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2598

Males

2459

M18-39

2459

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1864

Males

1764

M18-39

1764

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2193

Males

2049

M18-39

2049

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2579

Males

2398

M18-39

2398

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1836

Males

1717

M18-39

1717

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

2113

Males

1960

M18-39

1960

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2742

Males

2486

M18-39

2486

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2472

Males

2206

M18-39

2206

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2509

Males

2278

M18-39

2278

Passing Analysis

Category:
Athletes Passed
3205
Passed By
100
Net Change
+3105
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6018
5K → 10K71322+691#6018#5327
10K → 15K5427+535#5327#4792
15K → 20K4460+446#4792#4346
20K → Half751+74#4346#4272
Half → 25K3123+309#4272#3963
25K → 30K30514+291#3963#3672
30K → 20M1910+191#3672#3481
20M → 21M12510+115#3481#3366
21M → 35K745+69#3366#3297
35K → 23M1634+159#3297#3138
23M → 24M1028+94#3138#3044
24M → 40K6511+54#3044#2990
40K → 25.2M325+27#2990#2963
25.2M → Finish6010+50#2963#2913
TOTALS3205100+3105
📊

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