Boston Marathon logo
BOSTON MARATHON 2025

Dioni De Souza

Bib: 3696•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:41
Rank: #2646
Start → 5K
19:41 | 6:20/mi
10K· 6.21 mi
38:48
Rank: #2094 (+552)
5K → 10K
19:07 | 6:09/mi
15K· 9.32 mi
57:56
Rank: #1916 (+178)
10K → 15K
19:08 | 6:10/mi
20K· 12.43 mi
1:17:05
Rank: #1767 (+149)
15K → 20K
19:09 | 6:10/mi
Half· 13.11 mi
1:21:13
Rank: #1743 (+24)
20K → Half
4:08 | 6:03/mi
25K· 15.53 mi
1:35:58
Rank: #1581 (+162)
Half → 25K
14:45 | 6:05/mi
30K· 18.64 mi
1:55:08
Rank: #1389 (+192)
25K → 30K
19:10 | 6:10/mi
20M
2:03:42
Rank: #1337 (+52)
30K → 20M
8:34 | 6:18/mi
21M
2:10:22
Rank: #1300 (+37)
20M → 21M
6:40 | 6:40/mi
35K· 21.75 mi
2:14:57
Rank: #1270 (+30)
21M → 35K
4:35 | 6:08/mi
23M
2:22:54
Rank: #1212 (+58)
35K → 23M
7:57 | 6:21/mi
24M
2:28:57
Rank: #1166 (+46)
23M → 24M
6:03 | 6:03/mi
40K· 24.85 mi
2:34:09
Rank: #1122 (+44)
24M → 40K
5:12 | 6:05/mi
25.2M
2:36:31
Rank: #1111 (+11)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:42:41
Rank: #1080 (+31)
25.2M → Finish
6:10 | 6:03/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⚖️ Balanced
Distance13.11 mi
Time1:21:13
Pace6:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:21:28
Pace6:13 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1019:416:2019:41
6:20
-
10K
6.21 mi10:41:1738:486:1519:07
6:09
-0:11
15K
9.32 mi11:00:2557:566:1319:08
6:10
+0:01
20K
12.43 mi11:19:341:17:056:1219:09
6:10
0:00
Half
13.11 mi11:23:421:21:136:124:08
6:03
-0:07
25K
15.53 mi11:38:271:35:586:1114:45
6:05
+0:02
30K
18.64 mi11:57:371:55:086:1119:10
6:10
+0:05
20M
20.00 mi12:06:112:03:426:118:34
6:18
+0:08
21M
21.00 mi12:12:512:10:226:126:40
6:40
+0:22
35K
21.75 mi12:17:262:14:576:124:35
6:08
-0:32
23M
23.00 mi12:25:232:22:546:137:57
6:21
+0:13
24M
24.00 mi12:31:262:28:576:126:03
6:03
-0:18
40K
24.85 mi12:36:382:34:096:125:12
6:05
+0:02
25.2M
25.20 mi12:39:002:36:316:132:22
6:52
+0:47
Finish
26.22 mi12:45:102:42:416:136:10
6:03
-0:49

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

6:03 /mi

Average Pace

6:13 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:39

94% of race

Time at Steady Pace

9:02

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:12 /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 mi10:22:1019:416:2019:41
6:20
#2646
10K
6.21 mi10:41:1738:486:1519:07
6:09
#2094
15K
9.32 mi11:00:2557:566:1319:08
6:10
#1916
20K
12.43 mi11:19:341:17:056:1219:09
6:10
#1767
Half
13.11 mi11:23:421:21:136:124:08
6:03
#1743
25K
15.53 mi11:38:271:35:586:1114:45
6:05
#1581
30K
18.64 mi11:57:371:55:086:1119:10
6:10
#1389
20M
20.00 mi12:06:112:03:426:118:34
6:18
#1337
21M
21.00 mi12:12:512:10:226:126:40
6:40
#1300
35K
21.75 mi12:17:262:14:576:124:35
6:08
#1270
23M
23.00 mi12:25:232:22:546:137:57
6:21
#1212
24M
24.00 mi12:31:262:28:576:126:03
6:03
#1166
40K
24.85 mi12:36:382:34:096:125:12
6:05
#1122
25.2M
25.20 mi12:39:002:36:316:132:22
6:52
#1111
Finish
26.22 mi12:45:102:42:416:136:10
6:03
#1080
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2646252125211632(Top 6%)1548(Top 10%)1548(Top 27%)
10K6.21 mi3.10 mi2094+5521997+5241997+5241680(Top 6%)1599(Top 10%)1599(Top 28%)
15K9.32 mi3.11 mi1916+1781822+1751822+1751632(Top 6%)1548(Top 10%)1548(Top 27%)
20K12.43 mi3.11 mi1767+1491680+1421680+1421421(Top 5%)1347(Top 8%)1347(Top 24%)
Half13.11 mi0.68 mi1743+241656+241656+241350(Top 5%)1282(Top 8%)1282(Top 23%)
25K15.53 mi2.42 mi1581+1621498+1581498+1581034(Top 4%)977(Top 6%)977(Top 17%)
30K18.64 mi3.11 mi1389+1921313+1851313+185839(Top 3%)785(Top 5%)785(Top 14%)
20M20.00 mi1.36 mi1337+521261+521261+52973(Top 3%)918(Top 6%)918(Top 16%)
21M21.00 mi1.00 mi1300+371226+351226+351097(Top 4%)1036(Top 6%)1036(Top 18%)
35K21.75 mi0.75 mi1270+301196+301196+301012(Top 4%)953(Top 6%)953(Top 17%)
23M23.00 mi1.25 mi1212+581140+561140+56994(Top 3%)937(Top 6%)937(Top 17%)
24M24.00 mi1.00 mi1166+461100+401100+40680(Top 2%)638(Top 4%)638(Top 11%)
40K24.85 mi0.85 mi1122+441057+431057+43518(Top 2%)484(Top 3%)484(Top 9%)
25.2M25.20 mi0.35 mi1111+111047+101047+101111(Top 4%)1021(Top 6%)1021(Top 18%)
Finish26.22 mi1.02 mi1080+311017+301017+301050(Top 4%)984(Top 6%)984(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1632

Males

1548

M18-39

1548

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1680

Males

1599

M18-39

1599

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1632

Males

1548

M18-39

1548

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1421

Males

1347

M18-39

1347

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1350

Males

1282

M18-39

1282

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1034

Males

977

M18-39

977

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

839

Males

785

M18-39

785

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

973

Males

918

M18-39

918

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1097

Males

1036

M18-39

1036

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1012

Males

953

M18-39

953

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

994

Males

937

M18-39

937

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

680

Males

638

M18-39

638

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

518

Males

484

M18-39

484

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1111

Males

1021

M18-39

1021

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1050

Males

984

M18-39

984

Passing Analysis

Category:
Athletes Passed
1625
Passed By
59
Net Change
+1566
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2646
5K → 10K5575+552#2646#2094
10K → 15K1835+178#2094#1916
15K → 20K1545+149#1916#1767
20K → Half251+24#1767#1743
Half → 25K1631+162#1743#1581
25K → 30K1953+192#1581#1389
30K → 20M608+52#1389#1337
20M → 21M425+37#1337#1300
21M → 35K355+30#1300#1270
35K → 23M679+58#1270#1212
23M → 24M526+46#1212#1166
24M → 40K440+44#1166#1122
40K → 25.2M143+11#1122#1111
25.2M → Finish343+31#1111#1080
TOTALS162559+1566
📊

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