Boston Marathon logo
BOSTON MARATHON 2025

Tommy Bui

Bib: 29886•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
10:16/mi
31:54
↑ 97↓ 3451.5%
10K· 6.21 mi
10:41/mi
1:05:04
↑ 79↓ 1380.4%
15K· 9.32 mi
11:20/mi
1:40:17
↑ 67↓ 78
20K· 12.43 mi
12:26/mi
2:18:55
↑ 106↓ 860.1%
Half· 13.11 mi
12:20/mi
2:27:20
↑ 19↓ 370.5%
25K· 15.53 mi
13:09/mi
2:59:12
↑ 66↓ 880.2%
30K· 18.64 mi
14:32/mi
3:44:20
↑ 181↓ 1480.2%
20M
14:12/mi
4:03:38
↑ 64↓ 500.2%
21M
14:38/mi
4:18:16
↑ 106↓ 241.6%
35K· 21.75 mi
13:03/mi
4:28:02
↑ 17↓ 861.7%
23M
14:42/mi
4:46:26
↑ 23↓ 630.6%
24M
13:38/mi
5:00:04
↓ 821.3%
40K· 24.85 mi
14:28/mi
5:12:26
↓ 200.3%
25.2M
14:42/mi
5:17:30
↑ 13↓ 160.2%
Finish· 26.22 mi
12:37/mi
5:30:21
↑ 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
Time2:27:20
Pace11:14 /mi
2nd Half
Distance13.11 mi
Time3:03:01
Pace13:58 /mi
📊Positive Split: 24.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2931:5410:1631:54
10:16
-
10K
6.21 mi12:23:391:05:0410:2833:10
10:41
+0:25
15K
9.32 mi12:58:521:40:1710:4635:13
11:20
+0:39
20K
12.43 mi13:37:302:18:5511:1138:38
12:26
+1:06
Half
13.11 mi13:45:552:27:2011:148:25
12:20
-0:06
25K
15.53 mi14:17:472:59:1211:3231:52
13:09
+0:49
30K
18.64 mi15:02:553:44:2012:0245:08
14:32
+1:23
20M
20.00 mi15:22:134:03:3812:1119:18
14:12
-0:20
21M
21.00 mi15:36:514:18:1612:1814:38
14:38
+0:26
35K
21.75 mi15:46:374:28:0212:199:46
13:03
-1:35
23M
23.00 mi16:05:014:46:2612:2718:24
14:42
+1:39
24M
24.00 mi16:18:395:00:0412:3013:38
13:38
-1:04
40K
24.85 mi16:31:015:12:2612:3412:22
14:28
+0:50
25.2M
25.20 mi16:36:055:17:3012:365:04
14:42
+0:14
Finish
26.22 mi16:48:565:30:2112:3712:51
12:37
-2:05

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

10:16 /mi

Average Pace

12:37 /mi

Slowest Pace

14:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:42

33% of race

Time at Steady Pace

1:46:45

32% of race

Time at Slower Pace

1:54:54

35% of race

Average Pace: 12:36 /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 mi11:50:2931:5410:1631:54
10:16
#26236
10K
6.21 mi12:23:391:05:0410:2833:10
10:41
#26443
15K
9.32 mi12:58:521:40:1710:4635:13
11:20
#26721
20K
12.43 mi13:37:302:18:5511:1138:38
12:26
#27027
Half
13.11 mi13:45:552:27:2011:148:25
12:20
#27064
25K
15.53 mi14:17:472:59:1211:3231:52
13:09
#27151
30K
18.64 mi15:02:553:44:2012:0245:08
14:32
#27317
20M
20.00 mi15:22:134:03:3812:1119:18
14:12
#27355
21M
21.00 mi15:36:514:18:1612:1814:38
14:38
#27353
35K
21.75 mi15:46:374:28:0212:199:46
13:03
#27347
23M
23.00 mi16:05:014:46:2612:2718:24
14:42
#27400
24M
24.00 mi16:18:395:00:0412:3013:38
13:38
#27409
40K
24.85 mi16:31:015:12:2612:3412:22
14:28
#27423
25.2M
25.20 mi16:36:055:17:3012:365:04
14:42
#27426
Finish
26.22 mi16:48:565:30:2112:3712:51
12:37
#27437
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26236152801528027069(Top 95%)15584(Top 97%)15584(Top 276%)
10K6.21 mi3.10 mi26443-20715358-7815358-7826560(Top 94%)15397(Top 96%)15397(Top 273%)
15K9.32 mi3.11 mi26721-27815474-11615474-11627069(Top 95%)15584(Top 97%)15584(Top 276%)
20K12.43 mi3.11 mi27027-30615577-10315577-10327471(Top 97%)15717(Top 98%)15717(Top 279%)
Half13.11 mi0.68 mi27064-3715586-915586-927679(Top 97%)15797(Top 98%)15797(Top 280%)
25K15.53 mi2.42 mi27151-8715615-2915615-2927394(Top 96%)15676(Top 97%)15676(Top 278%)
30K18.64 mi3.11 mi27317-16615654-3915654-3927811(Top 98%)15785(Top 98%)15785(Top 280%)
20M20.00 mi1.36 mi27355-3815667-1315667-1327432(Top 97%)15582(Top 97%)15582(Top 276%)
21M21.00 mi1.00 mi27353+215661+615661+626842(Top 95%)15288(Top 95%)15288(Top 271%)
35K21.75 mi0.75 mi27347+615654+715654+727020(Top 95%)15353(Top 95%)15353(Top 272%)
23M23.00 mi1.25 mi27400-5315674-2015674-2027768(Top 98%)15715(Top 98%)15715(Top 279%)
24M24.00 mi1.00 mi27409-915669+515669+527424(Top 97%)15502(Top 96%)15502(Top 275%)
40K24.85 mi0.85 mi27423-1415671-215671-227501(Top 97%)15560(Top 97%)15560(Top 276%)
25.2M25.20 mi0.35 mi27426-3156711567126906(Top 95%)15226(Top 95%)15226(Top 270%)
Finish26.22 mi1.02 mi27437-1115675-415675-427367(Top 96%)15493(Top 96%)15493(Top 275%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

27069

Males

15584

M18-39

15584

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26560

Males

15397

M18-39

15397

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

27069

Males

15584

M18-39

15584

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

27471

Males

15717

M18-39

15717

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

27679

Males

15797

M18-39

15797

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

27394

Males

15676

M18-39

15676

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

27811

Males

15785

M18-39

15785

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27432

Males

15582

M18-39

15582

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

26842

Males

15288

M18-39

15288

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

27020

Males

15353

M18-39

15353

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

27768

Males

15715

M18-39

15715

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27424

Males

15502

M18-39

15502

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

27501

Males

15560

M18-39

15560

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

26906

Males

15226

M18-39

15226

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

27367

Males

15493

M18-39

15493

Passing Analysis

Category:
Athletes Passed
362
Passed By
1563
Net Change
-1201
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26236
5K → 10K93300-207#26236#26443
10K → 15K40318-278#26443#26721
15K → 20K32338-306#26721#27027
20K → Half744-37#27027#27064
Half → 25K41128-87#27064#27151
25K → 30K34200-166#27151#27317
30K → 20M1452-38#27317#27355
20M → 21M2523+2#27355#27353
21M → 35K159+6#27353#27347
35K → 23M861-53#27347#27400
23M → 24M1928-9#27400#27409
24M → 40K1226-14#27409#27423
40K → 25.2M811-3#27423#27426
25.2M → Finish1425-11#27426#27437
TOTALS3621563-1201
📊

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