Boston Marathon logo
BOSTON MARATHON 2025

Grzegorz Latanik

Bib: 6224•M

ON

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 45%
Division (M50-54)
#0 / 1996
Top 48%
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
7:27/mi
23:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:27
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:09:43
↑ 67↓ 78
20K· 12.43 mi
7:44/mi
1:33:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:38:57
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
1:57:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:22:27
↑ 181↓ 1480.2%
20M
8:00/mi
2:33:19
↑ 64↓ 500.2%
21M
8:35/mi
2:41:54
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:47:52
↑ 17↓ 861.7%
23M
8:47/mi
2:58:52
↑ 23↓ 630.6%
24M
8:51/mi
3:07:43
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:15:00
↓ 200.3%
25.2M
9:05/mi
3:18:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:45/mi
3:26:02
↑ 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
Time1:38:57
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:47:05
Pace8:10 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3923:107:2723:10
7:27
-
10K
6.21 mi11:13:5646:277:2923:17
7:30
+0:03
15K
9.32 mi11:37:121:09:437:2923:16
7:29
-0:01
20K
12.43 mi12:01:131:33:447:3324:01
7:44
+0:15
Half
13.11 mi12:06:261:38:577:335:13
7:39
-0:05
25K
15.53 mi12:25:241:57:557:3518:58
7:49
+0:10
30K
18.64 mi12:49:562:22:277:3924:32
7:54
+0:05
20M
20.00 mi13:00:482:33:197:4010:52
8:00
+0:06
21M
21.00 mi13:09:232:41:547:438:35
8:35
+0:35
35K
21.75 mi13:15:212:47:527:435:58
7:59
-0:36
23M
23.00 mi13:26:212:58:527:4711:00
8:47
+0:48
24M
24.00 mi13:35:123:07:437:498:51
8:51
+0:04
40K
24.85 mi13:42:293:15:007:517:17
8:31
-0:20
25.2M
25.20 mi13:45:373:18:087:523:08
9:05
+0:34
Finish
26.22 mi13:53:313:26:027:527:54
7:45
-1:20

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

7:27 /mi

Average Pace

7:52 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:43

34% of race

Time at Steady Pace

1:37:28

47% of race

Time at Slower Pace

38:51

19% of race

Average Pace: 7:51 /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 mi10:50:3923:107:2723:10
7:27
#11843
10K
6.21 mi11:13:5646:277:2923:17
7:30
#11909
15K
9.32 mi11:37:121:09:437:2923:16
7:29
#11816
20K
12.43 mi12:01:131:33:447:3324:01
7:44
#12013
Half
13.11 mi12:06:261:38:577:335:13
7:39
#12062
25K
15.53 mi12:25:241:57:557:3518:58
7:49
#12086
30K
18.64 mi12:49:562:22:277:3924:32
7:54
#11750
20M
20.00 mi13:00:482:33:197:4010:52
8:00
#11598
21M
21.00 mi13:09:232:41:547:438:35
8:35
#11563
35K
21.75 mi13:15:212:47:527:435:58
7:59
#11563
23M
23.00 mi13:26:212:58:527:4711:00
8:47
#11779
24M
24.00 mi13:35:123:07:437:498:51
8:51
#12019
40K
24.85 mi13:42:293:15:007:517:17
8:31
#12068
25.2M
25.20 mi13:45:373:18:087:523:08
9:05
#12048
Finish
26.22 mi13:53:313:26:027:527:54
7:45
#12003
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi118439104910411663(Top 41%)8909(Top 55%)8909(Top 446%)
10K6.21 mi3.10 mi11909-669116-129116-1212031(Top 42%)9163(Top 57%)9163(Top 459%)
15K9.32 mi3.11 mi11816+939060+569060+5611663(Top 41%)8909(Top 55%)8909(Top 446%)
20K12.43 mi3.11 mi12013-1979104-449104-4412652(Top 45%)9261(Top 58%)9261(Top 464%)
Half13.11 mi0.68 mi12062-499118-149118-1412901(Top 45%)9408(Top 58%)9408(Top 471%)
25K15.53 mi2.42 mi12086-249093+259093+2512521(Top 44%)9077(Top 56%)9077(Top 455%)
30K18.64 mi3.11 mi11750+3368848+2458848+24510597(Top 37%)7979(Top 50%)7979(Top 400%)
20M20.00 mi1.36 mi11598+1528748+1008748+10010421(Top 37%)7756(Top 48%)7756(Top 389%)
21M21.00 mi1.00 mi11563+358687+618687+6110976(Top 39%)7863(Top 49%)7863(Top 394%)
35K21.75 mi0.75 mi115638663+248663+2412084(Top 43%)8364(Top 52%)8364(Top 419%)
23M23.00 mi1.25 mi11779-2168732-698732-6915009(Top 53%)9624(Top 60%)9624(Top 482%)
24M24.00 mi1.00 mi12019-2408806-748806-7416555(Top 58%)10270(Top 64%)10270(Top 515%)
40K24.85 mi0.85 mi12068-498795+118795+1113518(Top 48%)8762(Top 54%)8762(Top 439%)
25.2M25.20 mi0.35 mi12048+208766+298766+2912219(Top 43%)8103(Top 50%)8103(Top 406%)
Finish26.22 mi1.02 mi12003+458725+418725+4111071(Top 39%)7548(Top 47%)7548(Top 378%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11663

Males

8909

M50-54

8909

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

12031

Males

9163

M50-54

9163

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11663

Males

8909

M50-54

8909

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12652

Males

9261

M50-54

9261

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12901

Males

9408

M50-54

9408

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12521

Males

9077

M50-54

9077

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10597

Males

7979

M50-54

7979

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10421

Males

7756

M50-54

7756

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10976

Males

7863

M50-54

7863

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12084

Males

8364

M50-54

8364

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

15009

Males

9624

M50-54

9624

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16555

Males

10270

M50-54

10270

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13518

Males

8762

M50-54

8762

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12219

Males

8103

M50-54

8103

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11071

Males

7548

M50-54

7548

Passing Analysis

Category:
Athletes Passed
1816
Passed By
1976
Net Change
-160
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11843
5K → 10K221287-66#11843#11909
10K → 15K217124+93#11909#11816
15K → 20K135332-197#11816#12013
20K → Half1968-49#12013#12062
Half → 25K158182-24#12062#12086
25K → 30K41074+336#12086#11750
30K → 20M18129+152#11750#11598
20M → 21M12590+35#11598#11563
21M → 35K56560#11563#11563
35K → 23M62278-216#11563#11779
23M → 24M32272-240#11779#12019
24M → 40K61110-49#12019#12068
40K → 25.2M4626+20#12068#12048
25.2M → Finish9348+45#12048#12003
TOTALS18161976-160
📊

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