Boston Marathon logo
BOSTON MARATHON 2025

Edgar Stormbroek

Bib: 28487•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:03
Rank: #22536
Start → 5K
28:03 | 9:02/mi
10K· 6.21 mi
56:26
Rank: #22745 (-209)
5K → 10K
28:23 | 9:08/mi
15K· 9.32 mi
1:24:08
Rank: #22395 (+350)
10K → 15K
27:42 | 8:55/mi
20K· 12.43 mi
1:52:26
Rank: #22145 (+250)
15K → 20K
28:18 | 9:07/mi
Half· 13.11 mi
1:58:40
Rank: #22147 (-2)
20K → Half
6:14 | 9:08/mi
25K· 15.53 mi
2:21:33
Rank: #22049 (+98)
Half → 25K
22:53 | 9:26/mi
30K· 18.64 mi
2:52:38
Rank: #22020 (+29)
25K → 30K
31:05 | 10:00/mi
20M
3:06:30
Rank: #21976 (+44)
30K → 20M
13:52 | 10:12/mi
21M
3:17:09
Rank: #21875 (+101)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
3:24:27
Rank: #21835 (+40)
21M → 35K
7:18 | 9:45/mi
23M
3:36:55
Rank: #21727 (+108)
35K → 23M
12:28 | 9:57/mi
24M
3:46:51
Rank: #21699 (+28)
23M → 24M
9:56 | 9:56/mi
40K· 24.85 mi
3:55:38
Rank: #21682 (+17)
24M → 40K
8:47 | 10:16/mi
25.2M
3:59:36
Rank: #21684 (-2)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:09:39
Rank: #21691 (-7)
25.2M → Finish
10:03 | 9:52/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
Time1:58:40
Pace9:03 /mi
2nd Half
Distance13.11 mi
Time2:10:59
Pace10:00 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5628:039:0228:03
9:02
-
10K
6.21 mi12:13:1956:269:0528:23
9:08
+0:06
15K
9.32 mi12:41:011:24:089:0227:42
8:55
-0:13
20K
12.43 mi13:09:191:52:269:0328:18
9:07
+0:12
Half
13.11 mi13:15:331:58:409:036:14
9:08
+0:01
25K
15.53 mi13:38:262:21:339:0722:53
9:26
+0:18
30K
18.64 mi14:09:312:52:389:1631:05
10:00
+0:34
20M
20.00 mi14:23:233:06:309:1913:52
10:12
+0:12
21M
21.00 mi14:34:023:17:099:2310:39
10:39
+0:27
35K
21.75 mi14:41:203:24:279:247:18
9:45
-0:54
23M
23.00 mi14:53:483:36:559:2612:28
9:57
+0:12
24M
24.00 mi15:03:443:46:519:279:56
9:56
-0:01
40K
24.85 mi15:12:313:55:389:298:47
10:16
+0:20
25.2M
25.20 mi15:16:293:59:369:303:58
11:30
+1:14
Finish
26.22 mi15:26:324:09:399:3210:03
9:52
-1:38

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

8:55 /mi

Average Pace

9:32 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:33

57% of race

Time at Steady Pace

1:24:42

34% of race

Time at Slower Pace

23:24

9% of race

Average Pace: 9:31 /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 mi11:44:5628:039:0228:03
9:02
#22536
10K
6.21 mi12:13:1956:269:0528:23
9:08
#22745
15K
9.32 mi12:41:011:24:089:0227:42
8:55
#22395
20K
12.43 mi13:09:191:52:269:0328:18
9:07
#22145
Half
13.11 mi13:15:331:58:409:036:14
9:08
#22147
25K
15.53 mi13:38:262:21:339:0722:53
9:26
#22049
30K
18.64 mi14:09:312:52:389:1631:05
10:00
#22020
20M
20.00 mi14:23:233:06:309:1913:52
10:12
#21976
21M
21.00 mi14:34:023:17:099:2310:39
10:39
#21875
35K
21.75 mi14:41:203:24:279:247:18
9:45
#21835
23M
23.00 mi14:53:483:36:559:2612:28
9:57
#21727
24M
24.00 mi15:03:443:46:519:279:56
9:56
#21699
40K
24.85 mi15:12:313:55:389:298:47
10:16
#21682
25.2M
25.20 mi15:16:293:59:369:303:58
11:30
#21684
Finish
26.22 mi15:26:324:09:399:3210:03
9:52
#21691
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi22536135471354721639(Top 76%)13233(Top 82%)13233(Top 663%)
10K6.21 mi3.10 mi22745-20913669-12213669-12222940(Top 81%)13780(Top 86%)13780(Top 690%)
15K9.32 mi3.11 mi22395+35013530+13913530+13921639(Top 76%)13233(Top 82%)13233(Top 663%)
20K12.43 mi3.11 mi22145+25013408+12213408+12221479(Top 76%)13117(Top 81%)13117(Top 657%)
Half13.11 mi0.68 mi22147-213411-313411-322340(Top 79%)13477(Top 84%)13477(Top 675%)
25K15.53 mi2.42 mi22049+9813360+5113360+5121666(Top 76%)13146(Top 82%)13146(Top 659%)
30K18.64 mi3.11 mi22020+2913324+3613324+3621606(Top 76%)12988(Top 81%)12988(Top 651%)
20M20.00 mi1.36 mi21976+4413294+3013294+3021582(Top 76%)12851(Top 80%)12851(Top 644%)
21M21.00 mi1.00 mi21875+10113225+6913225+6920441(Top 72%)12242(Top 76%)12242(Top 613%)
35K21.75 mi0.75 mi21835+4013190+3513190+3521181(Top 75%)12526(Top 78%)12526(Top 628%)
23M23.00 mi1.25 mi21727+10813107+8313107+8320338(Top 72%)12075(Top 75%)12075(Top 605%)
24M24.00 mi1.00 mi21699+2813072+3513072+3521160(Top 74%)12423(Top 77%)12423(Top 622%)
40K24.85 mi0.85 mi21682+1713035+3713035+3721292(Top 75%)12425(Top 77%)12425(Top 622%)
25.2M25.20 mi0.35 mi21684-213030+513030+522026(Top 78%)12801(Top 79%)12801(Top 641%)
Finish26.22 mi1.02 mi21691-713026+413026+422490(Top 79%)13022(Top 81%)13022(Top 652%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

21639

Males

13233

M50-54

13233

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

22940

Males

13780

M50-54

13780

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

21639

Males

13233

M50-54

13233

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21479

Males

13117

M50-54

13117

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22340

Males

13477

M50-54

13477

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21666

Males

13146

M50-54

13146

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21606

Males

12988

M50-54

12988

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21582

Males

12851

M50-54

12851

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20441

Males

12242

M50-54

12242

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21181

Males

12526

M50-54

12526

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

20338

Males

12075

M50-54

12075

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

21160

Males

12423

M50-54

12423

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21292

Males

12425

M50-54

12425

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22026

Males

12801

M50-54

12801

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

22490

Males

13022

M50-54

13022

Passing Analysis

Category:
Athletes Passed
1919
Passed By
1074
Net Change
+845
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22536
5K → 10K164373-209#22536#22745
10K → 15K39747+350#22745#22395
15K → 20K30555+250#22395#22145
20K → Half3436-2#22145#22147
Half → 25K19092+98#22147#22049
25K → 30K203174+29#22049#22020
30K → 20M10763+44#22020#21976
20M → 21M12928+101#21976#21875
21M → 35K6525+40#21875#21835
35K → 23M12921+108#21835#21727
23M → 24M6941+28#21727#21699
24M → 40K5841+17#21699#21682
40K → 25.2M2527-2#21682#21684
25.2M → Finish4451-7#21684#21691
TOTALS19191074+845
📊

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