Boston Marathon logo
BOSTON MARATHON 2025

Isaac Inacio

Bib: 5260•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:21
Rank: #4183
Start → 5K
20:21 | 6:33/mi
10K· 6.21 mi
40:39
Rank: #4065 (+118)
5K → 10K
20:18 | 6:32/mi
15K· 9.32 mi
1:01:00
Rank: #3983 (+82)
10K → 15K
20:21 | 6:33/mi
20K· 12.43 mi
1:21:17
Rank: #3765 (+218)
15K → 20K
20:17 | 6:32/mi
Half· 13.11 mi
1:25:40
Rank: #3734 (+31)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:41:21
Rank: #3537 (+197)
Half → 25K
15:41 | 6:28/mi
30K· 18.64 mi
2:01:52
Rank: #3253 (+284)
25K → 30K
20:31 | 6:36/mi
20M
2:10:42
Rank: #3069 (+184)
30K → 20M
8:50 | 6:30/mi
21M
2:17:25
Rank: #2919 (+150)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:21:57
Rank: #2794 (+125)
21M → 35K
4:32 | 6:04/mi
23M
2:29:47
Rank: #2581 (+213)
35K → 23M
7:50 | 6:15/mi
24M
2:35:57
Rank: #2459 (+122)
23M → 24M
6:10 | 6:10/mi
40K· 24.85 mi
2:41:17
Rank: #2345 (+114)
24M → 40K
5:20 | 6:14/mi
25.2M
2:43:37
Rank: #2304 (+41)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:49:51
Rank: #2241 (+63)
25.2M → Finish
6:14 | 6:07/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 Half
Distance13.11 mi
Time1:25:40
Pace6:32 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:24:11
Pace6:25 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5320:216:3320:21
6:33
-
10K
6.21 mi10:44:1140:396:3320:18
6:32
-0:01
15K
9.32 mi11:04:321:01:006:3320:21
6:33
+0:01
20K
12.43 mi11:24:491:21:176:3220:17
6:32
-0:01
Half
13.11 mi11:29:121:25:406:324:23
6:25
-0:07
25K
15.53 mi11:44:531:41:216:3115:41
6:28
+0:03
30K
18.64 mi12:05:242:01:526:3220:31
6:36
+0:08
20M
20.00 mi12:14:142:10:426:328:50
6:30
-0:06
21M
21.00 mi12:20:572:17:256:336:43
6:43
+0:13
35K
21.75 mi12:25:292:21:576:324:32
6:04
-0:39
23M
23.00 mi12:33:192:29:476:317:50
6:15
+0:11
24M
24.00 mi12:39:292:35:576:306:10
6:10
-0:05
40K
24.85 mi12:44:492:41:176:295:20
6:14
+0:04
25.2M
25.20 mi12:47:092:43:376:302:20
6:46
+0:32
Finish
26.22 mi12:53:232:49:516:296:14
6:07
-0:39

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

6:04 /mi

Average Pace

6:29 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:48

95% of race

Time at Steady Pace

9:03

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:23:5320:216:3320:21
6:33
#4183
10K
6.21 mi10:44:1140:396:3320:18
6:32
#4065
15K
9.32 mi11:04:321:01:006:3320:21
6:33
#3983
20K
12.43 mi11:24:491:21:176:3220:17
6:32
#3765
Half
13.11 mi11:29:121:25:406:324:23
6:25
#3734
25K
15.53 mi11:44:531:41:216:3115:41
6:28
#3537
30K
18.64 mi12:05:242:01:526:3220:31
6:36
#3253
20M
20.00 mi12:14:142:10:426:328:50
6:30
#3069
21M
21.00 mi12:20:572:17:256:336:43
6:43
#2919
35K
21.75 mi12:25:292:21:576:324:32
6:04
#2794
23M
23.00 mi12:33:192:29:476:317:50
6:15
#2581
24M
24.00 mi12:39:292:35:576:306:10
6:10
#2459
40K
24.85 mi12:44:492:41:176:295:20
6:14
#2345
25.2M
25.20 mi12:47:092:43:376:302:20
6:46
#2304
Finish
26.22 mi12:53:232:49:516:296:14
6:07
#2241
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4183393539353857(Top 14%)3637(Top 23%)3637(Top 64%)
10K6.21 mi3.10 mi4065+1183832+1033832+1033953(Top 14%)3720(Top 23%)3720(Top 66%)
15K9.32 mi3.11 mi3983+823754+783754+783857(Top 14%)3637(Top 23%)3637(Top 64%)
20K12.43 mi3.11 mi3765+2183553+2013553+2013274(Top 12%)3101(Top 19%)3101(Top 55%)
Half13.11 mi0.68 mi3734+313525+283525+283146(Top 11%)2987(Top 19%)2987(Top 53%)
25K15.53 mi2.42 mi3537+1973346+1793346+1792702(Top 10%)2570(Top 16%)2570(Top 46%)
30K18.64 mi3.11 mi3253+2843083+2633083+2632427(Top 9%)2297(Top 14%)2297(Top 41%)
20M20.00 mi1.36 mi3069+1842913+1702913+1701631(Top 6%)1542(Top 10%)1542(Top 27%)
21M21.00 mi1.00 mi2919+1502772+1412772+1411260(Top 4%)1190(Top 7%)1190(Top 21%)
35K21.75 mi0.75 mi2794+1252656+1162656+116871(Top 3%)816(Top 5%)816(Top 14%)
23M23.00 mi1.25 mi2581+2132456+2002456+200789(Top 3%)744(Top 5%)744(Top 13%)
24M24.00 mi1.00 mi2459+1222339+1172339+117943(Top 3%)888(Top 6%)888(Top 16%)
40K24.85 mi0.85 mi2345+1142230+1092230+109842(Top 3%)791(Top 5%)791(Top 14%)
25.2M25.20 mi0.35 mi2304+412189+412189+41913(Top 3%)846(Top 5%)846(Top 15%)
Finish26.22 mi1.02 mi2241+632126+632126+631259(Top 4%)1177(Top 7%)1177(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3857

Males

3637

M18-39

3637

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3953

Males

3720

M18-39

3720

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3857

Males

3637

M18-39

3637

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3274

Males

3101

M18-39

3101

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3146

Males

2987

M18-39

2987

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2702

Males

2570

M18-39

2570

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2427

Males

2297

M18-39

2297

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1631

Males

1542

M18-39

1542

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1260

Males

1190

M18-39

1190

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

871

Males

816

M18-39

816

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

789

Males

744

M18-39

744

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

943

Males

888

M18-39

888

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

842

Males

791

M18-39

791

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

913

Males

846

M18-39

846

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1259

Males

1177

M18-39

1177

Passing Analysis

Category:
Athletes Passed
2147
Passed By
205
Net Change
+1942
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4183
5K → 10K221103+118#4183#4065
10K → 15K13856+82#4065#3983
15K → 20K22911+218#3983#3765
20K → Half354+31#3765#3734
Half → 25K2025+197#3734#3537
25K → 30K29511+284#3537#3253
30K → 20M1851+184#3253#3069
20M → 21M1522+150#3069#2919
21M → 35K1250+125#2919#2794
35K → 23M2130+213#2794#2581
23M → 24M1220+122#2581#2459
24M → 40K1140+114#2459#2345
40K → 25.2M443+41#2345#2304
25.2M → Finish729+63#2304#2241
TOTALS2147205+1942
📊

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