Boston Marathon logo
BOSTON MARATHON 2025

Steve Lu

Bib: 19358•M

NJ

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:38
Rank: #18421
Start → 5K
25:38 | 8:15/mi
10K· 6.21 mi
51:07
Rank: #18142 (+279)
5K → 10K
25:29 | 8:12/mi
15K· 9.32 mi
1:16:54
Rank: #18104 (+38)
10K → 15K
25:47 | 8:18/mi
20K· 12.43 mi
1:43:20
Rank: #18088 (+16)
15K → 20K
26:26 | 8:30/mi
Half· 13.11 mi
1:49:05
Rank: #18103 (-15)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:10:25
Rank: #18234 (-131)
Half → 25K
21:20 | 8:48/mi
30K· 18.64 mi
2:39:31
Rank: #18489 (-255)
25K → 30K
29:06 | 9:22/mi
20M
2:52:49
Rank: #18671 (-182)
30K → 20M
13:18 | 9:47/mi
21M
3:03:20
Rank: #18788 (-117)
20M → 21M
10:31 | 10:31/mi
35K· 21.75 mi
3:10:39
Rank: #18912 (-124)
21M → 35K
7:19 | 9:47/mi
23M
3:23:13
Rank: #19078 (-166)
35K → 23M
12:34 | 10:02/mi
24M
3:32:57
Rank: #19154 (-76)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
3:41:22
Rank: #19193 (-39)
24M → 40K
8:25 | 9:51/mi
25.2M
3:45:10
Rank: #19208 (-15)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:55:02
Rank: #19340 (-132)
25.2M → Finish
9:52 | 9:41/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
Time1:49:05
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time2:05:57
Pace9:36 /mi
📊Positive Split: 15.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3125:388:1525:38
8:15
-
10K
6.21 mi11:43:0051:078:1425:29
8:12
-0:03
15K
9.32 mi12:08:471:16:548:1525:47
8:18
+0:06
20K
12.43 mi12:35:131:43:208:1926:26
8:30
+0:12
Half
13.11 mi12:40:581:49:058:195:45
8:26
-0:04
25K
15.53 mi13:02:182:10:258:2421:20
8:48
+0:22
30K
18.64 mi13:31:242:39:318:3329:06
9:22
+0:34
20M
20.00 mi13:44:422:52:498:3813:18
9:47
+0:25
21M
21.00 mi13:55:133:03:208:4410:31
10:31
+0:44
35K
21.75 mi14:02:323:10:398:467:19
9:47
-0:44
23M
23.00 mi14:15:063:23:138:5012:34
10:02
+0:15
24M
24.00 mi14:24:503:32:578:529:44
9:44
-0:18
40K
24.85 mi14:33:153:41:228:548:25
9:51
+0:07
25.2M
25.20 mi14:37:033:45:108:563:48
11:01
+1:10
Finish
26.22 mi14:46:553:55:028:589:52
9:41
-1:20

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

8:12 /mi

Average Pace

8:58 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:25

55% of race

Time at Steady Pace

1:30:18

38% of race

Time at Slower Pace

14:19

6% of race

Average Pace: 8:58 /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 mi11:17:3125:388:1525:38
8:15
#18421
10K
6.21 mi11:43:0051:078:1425:29
8:12
#18142
15K
9.32 mi12:08:471:16:548:1525:47
8:18
#18104
20K
12.43 mi12:35:131:43:208:1926:26
8:30
#18088
Half
13.11 mi12:40:581:49:058:195:45
8:26
#18103
25K
15.53 mi13:02:182:10:258:2421:20
8:48
#18234
30K
18.64 mi13:31:242:39:318:3329:06
9:22
#18489
20M
20.00 mi13:44:422:52:498:3813:18
9:47
#18671
21M
21.00 mi13:55:133:03:208:4410:31
10:31
#18788
35K
21.75 mi14:02:323:10:398:467:19
9:47
#18912
23M
23.00 mi14:15:063:23:138:5012:34
10:02
#19078
24M
24.00 mi14:24:503:32:578:529:44
9:44
#19154
40K
24.85 mi14:33:153:41:228:548:25
9:51
#19193
25.2M
25.20 mi14:37:033:45:108:563:48
11:01
#19208
Finish
26.22 mi14:46:553:55:028:589:52
9:41
#19340
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi18421117771177718039(Top 64%)11650(Top 72%)11650(Top 707%)
10K6.21 mi3.10 mi18142+27911674+10311674+10317904(Top 63%)11613(Top 72%)11613(Top 705%)
15K9.32 mi3.11 mi18104+3811661+1311661+1318039(Top 64%)11650(Top 72%)11650(Top 707%)
20K12.43 mi3.11 mi18088+1611650+1111650+1118299(Top 64%)11748(Top 73%)11748(Top 713%)
Half13.11 mi0.68 mi18103-1511654-411654-418721(Top 66%)11930(Top 74%)11930(Top 724%)
25K15.53 mi2.42 mi18234-13111693-3911693-3918920(Top 67%)11932(Top 74%)11932(Top 724%)
30K18.64 mi3.11 mi18489-25511781-8811781-8819405(Top 68%)12015(Top 75%)12015(Top 729%)
20M20.00 mi1.36 mi18671-18211834-5311834-5320243(Top 71%)12253(Top 76%)12253(Top 744%)
21M21.00 mi1.00 mi18788-11711854-2011854-2020054(Top 71%)12063(Top 75%)12063(Top 732%)
35K21.75 mi0.75 mi18912-12411882-2811882-2821249(Top 75%)12547(Top 78%)12547(Top 761%)
23M23.00 mi1.25 mi19078-16611934-5211934-5220599(Top 73%)12196(Top 76%)12196(Top 740%)
24M24.00 mi1.00 mi19154-7611944-1011944-1020486(Top 72%)12088(Top 75%)12088(Top 733%)
40K24.85 mi0.85 mi19193-3911934+1011934+1019928(Top 70%)11762(Top 73%)11762(Top 714%)
25.2M25.20 mi0.35 mi19208-1511926+811926+820669(Top 73%)12116(Top 75%)12116(Top 735%)
Finish26.22 mi1.02 mi19340-13211965-3911965-3921838(Top 77%)12702(Top 79%)12702(Top 771%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

18039

Males

11650

M55-59

11650

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17904

Males

11613

M55-59

11613

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

18039

Males

11650

M55-59

11650

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

18299

Males

11748

M55-59

11748

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

18721

Males

11930

M55-59

11930

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

18920

Males

11932

M55-59

11932

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19405

Males

12015

M55-59

12015

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20243

Males

12253

M55-59

12253

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20054

Males

12063

M55-59

12063

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21249

Males

12547

M55-59

12547

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

20599

Males

12196

M55-59

12196

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20486

Males

12088

M55-59

12088

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19928

Males

11762

M55-59

11762

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20669

Males

12116

M55-59

12116

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

21838

Males

12702

M55-59

12702

Passing Analysis

Category:
Athletes Passed
1510
Passed By
2429
Net Change
-919
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18421
5K → 10K426147+279#18421#18142
10K → 15K205167+38#18142#18104
15K → 20K196180+16#18104#18088
20K → Half3247-15#18088#18103
Half → 25K124255-131#18103#18234
25K → 30K168423-255#18234#18489
30K → 20M59241-182#18489#18671
20M → 21M71188-117#18671#18788
21M → 35K27151-124#18788#18912
35K → 23M50216-166#18912#19078
23M → 24M42118-76#19078#19154
24M → 40K5998-39#19154#19193
40K → 25.2M2641-15#19193#19208
25.2M → Finish25157-132#19208#19340
TOTALS15102429-919
📊

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