Boston Marathon logo
BOSTON MARATHON 2025

Marek Dron

Bib: 32357•M

IL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:56
Rank: #24638
Start → 5K
9:38/mi
29:56 split
10K· 6.21 mi
1:00:24
Rank: #24779 (-141)
5K → 10K
9:48/mi
30:28 split
15K· 9.32 mi
1:30:17
Rank: #24547 (+232)
10K → 15K
9:37/mi
29:53 split
20K· 12.43 mi
2:00:21
Rank: #24262 (+285)
15K → 20K
9:41/mi
30:04 split
Half· 13.11 mi
2:06:38
Rank: #24183 (+79)
20K → Half
9:13/mi
6:17 split
25K· 15.53 mi
2:30:32
Rank: #23959 (+224)
Half → 25K
9:51/mi
23:54 split
30K· 18.64 mi
3:03:04
Rank: #23726 (+233)
25K → 30K
10:28/mi
32:32 split
20M
3:17:31
Rank: #23657 (+69)
30K → 20M
10:38/mi
14:27 split
21M
3:28:47
Rank: #23559 (+98)
20M → 21M
11:16/mi
11:16 split
35K· 21.75 mi
3:36:34
Rank: #23534 (+25)
21M → 35K
10:24/mi
7:47 split
23M
3:49:24
Rank: #23401 (+133)
35K → 23M
10:15/mi
12:50 split
24M
3:59:53
Rank: #23374 (+27)
23M → 24M
10:29/mi
10:29 split
40K· 24.85 mi
4:09:17
Rank: #23338 (+36)
24M → 40K
11:00/mi
9:24 split
25.2M
4:13:28
Rank: #23340 (-2)
40K → 25.2M
12:08/mi
4:11 split
Finish· 26.22 mi
4:24:09
Rank: #23409 (-69)
25.2M → Finish
10:29/mi
10:41 split

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
Time2:06:38
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:17:31
Pace10:29 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3929:569:3829:56
9:38
-
10K
6.21 mi12:27:071:00:249:4330:28
9:48
+0:10
15K
9.32 mi12:57:001:30:179:4129:53
9:37
-0:11
20K
12.43 mi13:27:042:00:219:4130:04
9:41
+0:04
Half
13.11 mi13:33:212:06:389:406:17
9:13
-0:28
25K
15.53 mi13:57:152:30:329:4123:54
9:51
+0:38
30K
18.64 mi14:29:473:03:049:4932:32
10:28
+0:37
20M
20.00 mi14:44:143:17:319:5314:27
10:38
+0:10
21M
21.00 mi14:55:303:28:479:5711:16
11:16
+0:38
35K
21.75 mi15:03:173:36:349:577:47
10:24
-0:52
23M
23.00 mi15:16:073:49:249:5812:50
10:15
-0:09
24M
24.00 mi15:26:363:59:5310:0010:29
10:29
+0:14
40K
24.85 mi15:36:004:09:1710:029:24
11:00
+0:31
25.2M
25.20 mi15:40:114:13:2810:034:11
12:08
+1:08
Finish
26.22 mi15:50:524:24:0910:0510:41
10:29
-1:39

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

9:13 /mi

Average Pace

10:05 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:32

57% of race

Time at Steady Pace

1:28:46

34% of race

Time at Slower Pace

24:51

9% of race

Average Pace: 10:04 /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 mi11:56:3929:569:3829:56
9:38
#24638
10K
6.21 mi12:27:071:00:249:4330:28
9:48
#24779
15K
9.32 mi12:57:001:30:179:4129:53
9:37
#24547
20K
12.43 mi13:27:042:00:219:4130:04
9:41
#24262
Half
13.11 mi13:33:212:06:389:406:17
9:13
#24183
25K
15.53 mi13:57:152:30:329:4123:54
9:51
#23959
30K
18.64 mi14:29:473:03:049:4932:32
10:28
#23726
20M
20.00 mi14:44:143:17:319:5314:27
10:38
#23657
21M
21.00 mi14:55:303:28:479:5711:16
11:16
#23559
35K
21.75 mi15:03:173:36:349:577:47
10:24
#23534
23M
23.00 mi15:16:073:49:249:5812:50
10:15
#23401
24M
24.00 mi15:26:363:59:5310:0010:29
10:29
#23374
40K
24.85 mi15:36:004:09:1710:029:24
11:00
#23338
25.2M
25.20 mi15:40:114:13:2810:034:11
12:08
#23340
Finish
26.22 mi15:50:524:24:0910:0510:41
10:29
#23409
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi24638145431454324067(Top 85%)14294(Top 89%)14294(Top 636%)
10K6.21 mi3.10 mi24779-14114611-6814611-6824862(Top 88%)14637(Top 91%)14637(Top 651%)
15K9.32 mi3.11 mi24547+23214502+10914502+10924067(Top 85%)14294(Top 89%)14294(Top 636%)
20K12.43 mi3.11 mi24262+28514361+14114361+14123420(Top 82%)13981(Top 87%)13981(Top 622%)
Half13.11 mi0.68 mi24183+7914322+3914322+3922617(Top 80%)13620(Top 85%)13620(Top 606%)
25K15.53 mi2.42 mi23959+22414221+10114221+10122916(Top 81%)13711(Top 85%)13711(Top 610%)
30K18.64 mi3.11 mi23726+23314077+14414077+14422887(Top 81%)13574(Top 84%)13574(Top 604%)
20M20.00 mi1.36 mi23657+6914019+5814019+5822775(Top 80%)13421(Top 83%)13421(Top 597%)
21M21.00 mi1.00 mi23559+9813968+5113968+5122083(Top 78%)13016(Top 81%)13016(Top 579%)
35K21.75 mi0.75 mi23534+2513945+2313945+2322954(Top 81%)13365(Top 83%)13365(Top 595%)
23M23.00 mi1.25 mi23401+13313866+7913866+7921271(Top 75%)12530(Top 78%)12530(Top 558%)
24M24.00 mi1.00 mi23374+2713835+3113835+3122769(Top 80%)13191(Top 82%)13191(Top 587%)
40K24.85 mi0.85 mi23338+3613803+3213803+3223131(Top 81%)13303(Top 83%)13303(Top 592%)
25.2M25.20 mi0.35 mi23340-213796+713796+723490(Top 83%)13521(Top 84%)13521(Top 602%)
Finish26.22 mi1.02 mi23409-6913810-1413810-1424237(Top 85%)13891(Top 86%)13891(Top 618%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

24067

Males

14294

M40-44

14294

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

24862

Males

14637

M40-44

14637

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

24067

Males

14294

M40-44

14294

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23420

Males

13981

M40-44

13981

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

22617

Males

13620

M40-44

13620

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

22916

Males

13711

M40-44

13711

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

22887

Males

13574

M40-44

13574

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22775

Males

13421

M40-44

13421

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22083

Males

13016

M40-44

13016

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

22954

Males

13365

M40-44

13365

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21271

Males

12530

M40-44

12530

23M→24M

23.0 - 24.0 mi

Top 80%
×6stories
+12ft-82ft

Overall

22769

Males

13191

M40-44

13191

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23131

Males

13303

M40-44

13303

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23490

Males

13521

M40-44

13521

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

24237

Males

13891

M40-44

13891

Passing Analysis

Category:
Athletes Passed
1938
Passed By
709
Net Change
+1229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24638
5K → 10K148289-141#24638#24779
10K → 15K27543+232#24779#24547
15K → 20K30621+285#24547#24262
20K → Half801+79#24262#24183
Half → 25K25228+224#24183#23959
25K → 30K27744+233#23959#23726
30K → 20M10637+69#23726#23657
20M → 21M12224+98#23657#23559
21M → 35K5732+25#23559#23534
35K → 23M14411+133#23534#23401
23M → 24M6538+27#23401#23374
24M → 40K6226+36#23374#23338
40K → 25.2M2325-2#23338#23340
25.2M → Finish2190-69#23340#23409
TOTALS1938709+1229
📊

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