Boston Marathon logo
BOSTON MARATHON 2025

Leo Marcy

Bib: 2216•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Division (M18-39)
#0 / 5642
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:09
Rank: #1669
Start → 5K
19:09 | 6:10/mi
10K· 6.21 mi
38:13
Rank: #1635 (+34)
5K → 10K
19:04 | 6:08/mi
15K· 9.32 mi
57:24
Rank: #1642 (-7)
10K → 15K
19:11 | 6:10/mi
20K· 12.43 mi
1:16:53
Rank: #1701 (-59)
15K → 20K
19:29 | 6:16/mi
Half· 13.11 mi
1:21:02
Rank: #1685 (+16)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:36:23
Rank: #1697 (-12)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:56:52
Rank: #1804 (-107)
25K → 30K
20:29 | 6:36/mi
20M
2:05:59
Rank: #1827 (-23)
30K → 20M
9:07 | 6:43/mi
21M
2:13:07
Rank: #1844 (-17)
20M → 21M
7:08 | 7:08/mi
35K· 21.75 mi
2:17:58
Rank: #1850 (-6)
21M → 35K
4:51 | 6:29/mi
23M
2:26:31
Rank: #1872 (-22)
35K → 23M
8:33 | 6:50/mi
24M
2:33:16
Rank: #1909 (-37)
23M → 24M
6:45 | 6:45/mi
40K· 24.85 mi
2:39:09
Rank: #1928 (-19)
24M → 40K
5:53 | 6:53/mi
25.2M
2:41:47
Rank: #1947 (-19)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:48:39
Rank: #1995 (-48)
25.2M → Finish
6:52 | 6:44/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
Time1:21:02
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:27:37
Pace6:41 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3519:096:1019:09
6:10
-
10K
6.21 mi10:38:3938:136:0919:04
6:08
-0:02
15K
9.32 mi10:57:5057:246:1019:11
6:10
+0:02
20K
12.43 mi11:17:191:16:536:1119:29
6:16
+0:06
Half
13.11 mi11:21:281:21:026:114:09
6:05
-0:11
25K
15.53 mi11:36:491:36:236:1215:21
6:20
+0:15
30K
18.64 mi11:57:181:56:526:1620:29
6:36
+0:16
20M
20.00 mi12:06:252:05:596:189:07
6:43
+0:07
21M
21.00 mi12:13:332:13:076:207:08
7:08
+0:25
35K
21.75 mi12:18:242:17:586:214:51
6:29
-0:39
23M
23.00 mi12:26:572:26:316:228:33
6:50
+0:21
24M
24.00 mi12:33:422:33:166:236:45
6:45
-0:05
40K
24.85 mi12:39:352:39:096:245:53
6:53
+0:08
25.2M
25.20 mi12:42:132:41:476:252:38
7:38
+0:45
Finish
26.22 mi12:49:052:48:396:266:52
6:44
-0:54

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

6:05 /mi

Average Pace

6:26 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:23

57% of race

Time at Steady Pace

48:04

29% of race

Time at Slower Pace

24:12

14% of race

Average Pace: 6:26 /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 mi10:19:3519:096:1019:09
6:10
#1669
10K
6.21 mi10:38:3938:136:0919:04
6:08
#1635
15K
9.32 mi10:57:5057:246:1019:11
6:10
#1642
20K
12.43 mi11:17:191:16:536:1119:29
6:16
#1701
Half
13.11 mi11:21:281:21:026:114:09
6:05
#1685
25K
15.53 mi11:36:491:36:236:1215:21
6:20
#1697
30K
18.64 mi11:57:181:56:526:1620:29
6:36
#1804
20M
20.00 mi12:06:252:05:596:189:07
6:43
#1827
21M
21.00 mi12:13:332:13:076:207:08
7:08
#1844
35K
21.75 mi12:18:242:17:586:214:51
6:29
#1850
23M
23.00 mi12:26:572:26:316:228:33
6:50
#1872
24M
24.00 mi12:33:422:33:166:236:45
6:45
#1909
40K
24.85 mi12:39:352:39:096:245:53
6:53
#1928
25.2M
25.20 mi12:42:132:41:476:252:38
7:38
#1947
Finish
26.22 mi12:49:052:48:396:266:52
6:44
#1995
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1669158715871716(Top 6%)1629(Top 10%)1629(Top 29%)
10K6.21 mi3.10 mi1635+341556+311556+311614(Top 6%)1536(Top 10%)1536(Top 27%)
15K9.32 mi3.11 mi1642-71563-71563-71716(Top 6%)1629(Top 10%)1629(Top 29%)
20K12.43 mi3.11 mi1701-591616-531616-531891(Top 7%)1801(Top 11%)1801(Top 32%)
Half13.11 mi0.68 mi1685+161600+161600+161484(Top 5%)1412(Top 9%)1412(Top 25%)
25K15.53 mi2.42 mi1697-121612-121612-122010(Top 7%)1914(Top 12%)1914(Top 34%)
30K18.64 mi3.11 mi1804-1071718-1061718-1062376(Top 8%)2251(Top 14%)2251(Top 40%)
20M20.00 mi1.36 mi1827-231737-191737-192484(Top 9%)2338(Top 15%)2338(Top 41%)
21M21.00 mi1.00 mi1844-171753-161753-162804(Top 10%)2598(Top 16%)2598(Top 46%)
35K21.75 mi0.75 mi1850-61758-51758-52356(Top 8%)2199(Top 14%)2199(Top 39%)
23M23.00 mi1.25 mi1872-221776-181776-182827(Top 10%)2589(Top 16%)2589(Top 46%)
24M24.00 mi1.00 mi1909-371811-351811-353194(Top 11%)2874(Top 18%)2874(Top 51%)
40K24.85 mi0.85 mi1928-191826-151826-153223(Top 11%)2875(Top 18%)2875(Top 51%)
25.2M25.20 mi0.35 mi1947-191845-191845-193952(Top 14%)3368(Top 21%)3368(Top 60%)
Finish26.22 mi1.02 mi1995-481891-461891-464078(Top 14%)3481(Top 22%)3481(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1716

Males

1629

M18-39

1629

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1614

Males

1536

M18-39

1536

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1716

Males

1629

M18-39

1629

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1891

Males

1801

M18-39

1801

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1484

Males

1412

M18-39

1412

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2010

Males

1914

M18-39

1914

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2376

Males

2251

M18-39

2251

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2484

Males

2338

M18-39

2338

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2804

Males

2598

M18-39

2598

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2356

Males

2199

M18-39

2199

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2827

Males

2589

M18-39

2589

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3194

Males

2874

M18-39

2874

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3223

Males

2875

M18-39

2875

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3952

Males

3368

M18-39

3368

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

4078

Males

3481

M18-39

3481

Passing Analysis

Category:
Athletes Passed
486
Passed By
812
Net Change
-326
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1669
5K → 10K9864+34#1669#1635
10K → 15K5663-7#1635#1642
15K → 20K3493-59#1642#1701
20K → Half182+16#1701#1685
Half → 25K4860-12#1685#1697
25K → 30K39146-107#1697#1804
30K → 20M2952-23#1804#1827
20M → 21M3552-17#1827#1844
21M → 35K2228-6#1844#1850
35K → 23M3860-22#1850#1872
23M → 24M2259-37#1872#1909
24M → 40K2241-19#1909#1928
40K → 25.2M928-19#1928#1947
25.2M → Finish1664-48#1947#1995
TOTALS486812-326
📊

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