Boston Marathon logo
BOSTON MARATHON 2025

Sam Daly

Bib: 1482•M

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 8%
Division (M18-39)
#0 / 5642
Top 19%
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
6:13/mi
19:20
↑ 97↓ 3451.5%
10K· 6.21 mi
6:16/mi
38:48
↑ 79↓ 1380.4%
15K· 9.32 mi
6:13/mi
58:08
↑ 67↓ 78
20K· 12.43 mi
6:16/mi
1:17:35
↑ 106↓ 860.1%
Half· 13.11 mi
6:14/mi
1:21:50
↑ 19↓ 370.5%
25K· 15.53 mi
6:10/mi
1:36:47
↑ 66↓ 880.2%
30K· 18.64 mi
6:20/mi
1:56:27
↑ 181↓ 1480.2%
20M
6:18/mi
2:05:01
↑ 64↓ 500.2%
21M
6:39/mi
2:11:40
↑ 106↓ 241.6%
35K· 21.75 mi
6:06/mi
2:16:14
↑ 17↓ 861.7%
23M
6:21/mi
2:24:11
↑ 23↓ 630.6%
24M
6:14/mi
2:30:25
↓ 821.3%
40K· 24.85 mi
6:28/mi
2:35:57
↓ 200.3%
25.2M
7:03/mi
2:38:23
↑ 13↓ 160.2%
Finish· 26.22 mi
6:16/mi
2:44:46
↑ 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
Time1:21:50
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:22:56
Pace6:20 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1119:206:1319:20
6:13
-
10K
6.21 mi10:39:3938:486:1519:28
6:16
+0:03
15K
9.32 mi10:58:5958:086:1419:20
6:13
-0:03
20K
12.43 mi11:18:261:17:356:1519:27
6:16
+0:03
Half
13.11 mi11:22:411:21:506:154:15
6:14
-0:02
25K
15.53 mi11:37:381:36:476:1414:57
6:10
-0:04
30K
18.64 mi11:57:181:56:276:1519:40
6:20
+0:10
20M
20.00 mi12:05:522:05:016:158:34
6:18
-0:02
21M
21.00 mi12:12:312:11:406:166:39
6:39
+0:21
35K
21.75 mi12:17:052:16:146:164:34
6:06
-0:33
23M
23.00 mi12:25:022:24:116:167:57
6:21
+0:15
24M
24.00 mi12:31:162:30:256:166:14
6:14
-0:07
40K
24.85 mi12:36:482:35:576:165:32
6:28
+0:14
25.2M
25.20 mi12:39:142:38:236:172:26
7:03
+0:35
Finish
26.22 mi12:45:372:44:466:176:23
6:16
-0:47

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

6:06 /mi

Average Pace

6:17 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:20

99% of race

Time at Steady Pace

2:26

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:17 /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 mi10:20:1119:206:1319:20
6:13
#1974
10K
6.21 mi10:39:3938:486:1519:28
6:16
#2097
15K
9.32 mi10:58:5958:086:1419:20
6:13
#2032
20K
12.43 mi11:18:261:17:356:1519:27
6:16
#1960
Half
13.11 mi11:22:411:21:506:154:15
6:14
#1966
25K
15.53 mi11:37:381:36:476:1414:57
6:10
#1839
30K
18.64 mi11:57:181:56:276:1519:40
6:20
#1700
20M
20.00 mi12:05:522:05:016:158:34
6:18
#1605
21M
21.00 mi12:12:312:11:406:166:39
6:39
#1543
35K
21.75 mi12:17:052:16:146:164:34
6:06
#1489
23M
23.00 mi12:25:022:24:116:167:57
6:21
#1422
24M
24.00 mi12:31:162:30:256:166:14
6:14
#1372
40K
24.85 mi12:36:482:35:576:165:32
6:28
#1362
25.2M
25.20 mi12:39:142:38:236:172:26
7:03
#1360
Finish
26.22 mi12:45:372:44:466:176:23
6:16
#1349
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1974187718771942(Top 7%)1849(Top 11%)1849(Top 33%)
10K6.21 mi3.10 mi2097-1232000-1232000-1232199(Top 8%)2102(Top 13%)2102(Top 37%)
15K9.32 mi3.11 mi2032+651936+641936+641942(Top 7%)1849(Top 11%)1849(Top 33%)
20K12.43 mi3.11 mi1960+721870+661870+661828(Top 6%)1739(Top 11%)1739(Top 31%)
Half13.11 mi0.68 mi1966-61876-61876-62077(Top 7%)1981(Top 12%)1981(Top 35%)
25K15.53 mi2.42 mi1839+1271750+1261750+1261327(Top 5%)1257(Top 8%)1257(Top 22%)
30K18.64 mi3.11 mi1700+1391616+1341616+1341302(Top 5%)1229(Top 8%)1229(Top 22%)
20M20.00 mi1.36 mi1605+951520+961520+96983(Top 3%)928(Top 6%)928(Top 16%)
21M21.00 mi1.00 mi1543+621461+591461+591061(Top 4%)1004(Top 6%)1004(Top 18%)
35K21.75 mi0.75 mi1489+541408+531408+53972(Top 3%)915(Top 6%)915(Top 16%)
23M23.00 mi1.25 mi1422+671342+661342+661006(Top 4%)949(Top 6%)949(Top 17%)
24M24.00 mi1.00 mi1372+501293+491293+491117(Top 4%)1050(Top 7%)1050(Top 19%)
40K24.85 mi0.85 mi1362+101284+91284+91500(Top 5%)1387(Top 9%)1387(Top 25%)
25.2M25.20 mi0.35 mi1360+21282+21282+21616(Top 6%)1473(Top 9%)1473(Top 26%)
Finish26.22 mi1.02 mi1349+111270+121270+121743(Top 6%)1613(Top 10%)1613(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

1942

Males

1849

M18-39

1849

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2199

Males

2102

M18-39

2102

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

1942

Males

1849

M18-39

1849

15K→20K

9.3 - 12.4 mi

Top 6%
×5story building
+106ft-86ft

Overall

1828

Males

1739

M18-39

1739

20K→Half

12.4 - 13.1 mi

Top 7%
×2story building
+19ft-37ft

Overall

2077

Males

1981

M18-39

1981

Half→25K

13.1 - 15.5 mi

Top 5%
×4story building
+66ft-88ft

Overall

1327

Males

1257

M18-39

1257

25K→30K

15.5 - 18.6 mi

Top 5%
×9story building
+181ft-148ft

Overall

1302

Males

1229

M18-39

1229

30K→20M

18.6 - 20.0 mi

Top 3%
×5story building
+64ft-50ft

Overall

983

Males

928

M18-39

928

20M→21M

20.0 - 21.0 mi

Top 4%
×8story building
+106ft-24ft

Overall

1061

Males

1004

M18-39

1004

21M→35K

21.0 - 21.8 mi

Top 3%
×7story building
+17ft-86ft

Overall

972

Males

915

M18-39

915

35K→23M

21.8 - 23.0 mi

Top 4%
×5story building
+23ft-63ft

Overall

1006

Males

949

M18-39

949

23M→24M

23.0 - 24.0 mi

Top 4%
×6story building
+12ft-82ft

Overall

1117

Males

1050

M18-39

1050

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1500

Males

1387

M18-39

1387

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1616

Males

1473

M18-39

1473

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2story building
+22ft-21ft

Overall

1743

Males

1613

M18-39

1613

Passing Analysis

Category:
Athletes Passed
980
Passed By
355
Net Change
+625
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1974
5K → 10K66189-123#1974#2097
10K → 15K10540+65#2097#2032
15K → 20K9826+72#2032#1960
20K → Half1016-6#1960#1966
Half → 25K1314+127#1966#1839
25K → 30K15112+139#1839#1700
30K → 20M972+95#1700#1605
20M → 21M7311+62#1605#1543
21M → 35K573+54#1543#1489
35K → 23M7710+67#1489#1422
23M → 24M599+50#1422#1372
24M → 40K199+10#1372#1362
40K → 25.2M97+2#1362#1360
25.2M → Finish2817+11#1360#1349
TOTALS980355+625
📊

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