Boston Marathon logo
BOSTON MARATHON 2025

Dirk Stribrny

Bib: 17081•M

PA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
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
7:57/mi
24:42
↑ 97↓ 3451.5%
10K· 6.21 mi
8:11/mi
50:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:20/mi
1:15:58
↑ 67↓ 78
20K· 12.43 mi
8:16/mi
1:41:39
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:47:09
↑ 19↓ 370.5%
25K· 15.53 mi
8:16/mi
2:07:11
↑ 66↓ 880.2%
30K· 18.64 mi
8:33/mi
2:33:44
↑ 181↓ 1480.2%
20M
8:35/mi
2:45:24
↑ 64↓ 500.2%
21M
9:33/mi
2:54:57
↑ 106↓ 241.6%
35K· 21.75 mi
8:49/mi
3:01:33
↑ 17↓ 861.7%
23M
10:10/mi
3:14:17
↑ 23↓ 630.6%
24M
9:40/mi
3:23:57
↓ 821.3%
40K· 24.85 mi
9:47/mi
3:32:19
↓ 200.3%
25.2M
11:04/mi
3:36:08
↑ 13↓ 160.2%
Finish· 26.22 mi
9:09/mi
3:45:27
↑ 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
Time1:47:09
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:58:18
Pace9:01 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1524:427:5724:42
7:57
-
10K
6.21 mi11:40:3950:068:0425:24
8:11
+0:14
15K
9.32 mi12:06:311:15:588:0925:52
8:20
+0:09
20K
12.43 mi12:32:121:41:398:1125:41
8:16
-0:04
Half
13.11 mi12:37:421:47:098:105:30
8:04
-0:12
25K
15.53 mi12:57:442:07:118:1120:02
8:16
+0:12
30K
18.64 mi13:24:172:33:448:1526:33
8:33
+0:17
20M
20.00 mi13:35:572:45:248:1611:40
8:35
+0:02
21M
21.00 mi13:45:302:54:578:209:33
9:33
+0:58
35K
21.75 mi13:52:063:01:338:216:36
8:49
-0:44
23M
23.00 mi14:04:503:14:178:2712:44
10:10
+1:21
24M
24.00 mi14:14:303:23:578:309:40
9:40
-0:30
40K
24.85 mi14:22:523:32:198:338:22
9:47
+0:07
25.2M
25.20 mi14:26:413:36:088:353:49
11:04
+1:17
Finish
26.22 mi14:36:003:45:278:369:19
9:09
-1:55

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

7:57 /mi

Average Pace

8:36 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:12

13% of race

Time at Steady Pace

2:21:48

63% of race

Time at Slower Pace

53:27

24% of race

Average Pace: 8:36 /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 mi11:15:1524:427:5724:42
7:57
#16182
10K
6.21 mi11:40:3950:068:0425:24
8:11
#16989
15K
9.32 mi12:06:311:15:588:0925:52
8:20
#17430
20K
12.43 mi12:32:121:41:398:1125:41
8:16
#17204
Half
13.11 mi12:37:421:47:098:105:30
8:04
#17151
25K
15.53 mi12:57:442:07:118:1120:02
8:16
#16876
30K
18.64 mi13:24:172:33:448:1526:33
8:33
#16506
20M
20.00 mi13:35:572:45:248:1611:40
8:35
#16312
21M
21.00 mi13:45:302:54:578:209:33
9:33
#16267
35K
21.75 mi13:52:063:01:338:216:36
8:49
#16277
23M
23.00 mi14:04:503:14:178:2712:44
10:10
#16661
24M
24.00 mi14:14:303:23:578:309:40
9:40
#16875
40K
24.85 mi14:22:523:32:198:338:22
9:47
#17038
25.2M
25.20 mi14:26:413:36:088:353:49
11:04
#17118
Finish
26.22 mi14:36:003:45:278:369:19
9:09
#17256
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16182108811088118210(Top 64%)11715(Top 73%)11715(Top 711%)
10K6.21 mi3.10 mi16989-80711220-33911220-33917712(Top 62%)11535(Top 72%)11535(Top 700%)
15K9.32 mi3.11 mi17430-44111409-18911409-18918210(Top 64%)11715(Top 73%)11715(Top 711%)
20K12.43 mi3.11 mi17204+22611290+11911290+11916730(Top 59%)11060(Top 69%)11060(Top 671%)
Half13.11 mi0.68 mi17151+5311265+2511265+2516339(Top 58%)10915(Top 68%)10915(Top 662%)
25K15.53 mi2.42 mi16876+27511137+12811137+12815678(Top 55%)10521(Top 65%)10521(Top 638%)
30K18.64 mi3.11 mi16506+37010929+20810929+20815052(Top 53%)10084(Top 63%)10084(Top 612%)
20M20.00 mi1.36 mi16312+19410823+10610823+10614339(Top 50%)9621(Top 60%)9621(Top 584%)
21M21.00 mi1.00 mi16267+4510770+5310770+5316297(Top 57%)10389(Top 65%)10389(Top 630%)
35K21.75 mi0.75 mi16277-1010755+1510755+1517340(Top 61%)10744(Top 67%)10744(Top 652%)
23M23.00 mi1.25 mi16661-38410885-13010885-13021012(Top 74%)12396(Top 77%)12396(Top 752%)
24M24.00 mi1.00 mi16875-21410945-6010945-6020245(Top 71%)11976(Top 74%)11976(Top 727%)
40K24.85 mi0.85 mi17038-16310987-4210987-4219749(Top 70%)11678(Top 73%)11678(Top 709%)
25.2M25.20 mi0.35 mi17118-8011005-1811005-1820802(Top 73%)12178(Top 76%)12178(Top 739%)
Finish26.22 mi1.02 mi17256-13811049-4411049-4419685(Top 69%)11661(Top 72%)11661(Top 708%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18210

Males

11715

M55-59

11715

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17712

Males

11535

M55-59

11535

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18210

Males

11715

M55-59

11715

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

16730

Males

11060

M55-59

11060

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16339

Males

10915

M55-59

10915

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15678

Males

10521

M55-59

10521

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15052

Males

10084

M55-59

10084

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

14339

Males

9621

M55-59

9621

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16297

Males

10389

M55-59

10389

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17340

Males

10744

M55-59

10744

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

21012

Males

12396

M55-59

12396

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20245

Males

11976

M55-59

11976

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19749

Males

11678

M55-59

11678

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20802

Males

12178

M55-59

12178

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19685

Males

11661

M55-59

11661

Passing Analysis

Category:
Athletes Passed
1815
Passed By
2889
Net Change
-1074
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16182
5K → 10K85892-807#16182#16989
10K → 15K82523-441#16989#17430
15K → 20K29670+226#17430#17204
20K → Half618+53#17204#17151
Half → 25K30328+275#17151#16876
25K → 30K42555+370#16876#16506
30K → 20M22026+194#16506#16312
20M → 21M12883+45#16312#16267
21M → 35K6272-10#16267#16277
35K → 23M36420-384#16277#16661
23M → 24M31245-214#16661#16875
24M → 40K35198-163#16875#17038
40K → 25.2M1595-80#17038#17118
25.2M → Finish36174-138#17118#17256
TOTALS18152889-1074
📊

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