Boston Marathon logo
BOSTON MARATHON 2025

Terry Lew

Bib: 24273•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
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
8:36/mi
26:44
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
53:19
↑ 79↓ 1380.4%
15K· 9.32 mi
8:47/mi
1:20:36
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:48:17
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:54:10
↑ 19↓ 370.5%
25K· 15.53 mi
9:41/mi
2:17:39
↑ 66↓ 880.2%
30K· 18.64 mi
10:02/mi
2:48:48
↑ 181↓ 1480.2%
20M
10:02/mi
3:02:26
↑ 64↓ 500.2%
21M
10:28/mi
3:12:54
↑ 106↓ 241.6%
35K· 21.75 mi
9:45/mi
3:20:12
↑ 17↓ 861.7%
23M
9:44/mi
3:32:23
↑ 23↓ 630.6%
24M
10:49/mi
3:43:12
↓ 821.3%
40K· 24.85 mi
12:16/mi
3:53:41
↓ 200.3%
25.2M
12:43/mi
3:58:04
↑ 13↓ 160.2%
Finish· 26.22 mi
9:49/mi
4:08:04
↑ 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
Time1:54:10
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:13:54
Pace10:13 /mi
📊Positive Split: 17.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2426:448:3626:44
8:36
-
10K
6.21 mi11:50:5953:198:3526:35
8:33
-0:03
15K
9.32 mi12:18:161:20:368:3927:17
8:47
+0:14
20K
12.43 mi12:45:571:48:178:4327:41
8:55
+0:08
Half
13.11 mi12:51:501:54:108:435:53
8:37
-0:18
25K
15.53 mi13:15:192:17:398:5223:29
9:41
+1:04
30K
18.64 mi13:46:282:48:489:0331:09
10:02
+0:21
20M
20.00 mi14:00:063:02:269:0713:38
10:02
0:00
21M
21.00 mi14:10:343:12:549:1110:28
10:28
+0:26
35K
21.75 mi14:17:523:20:129:127:18
9:45
-0:43
23M
23.00 mi14:30:033:32:239:1412:11
9:44
-0:01
24M
24.00 mi14:40:523:43:129:1810:49
10:49
+1:05
40K
24.85 mi14:51:213:53:419:2410:29
12:16
+1:27
25.2M
25.20 mi14:55:443:58:049:274:23
12:43
+0:27
Finish
26.22 mi15:05:444:08:049:2810:00
9:49
-2:54

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

8:33 /mi

Average Pace

9:28 /mi

Slowest Pace

12:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:10

46% of race

Time at Steady Pace

1:37:45

39% of race

Time at Slower Pace

36:09

15% of race

Average Pace: 9:28 /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 mi11:24:2426:448:3626:44
8:36
#20480
10K
6.21 mi11:50:5953:198:3526:35
8:33
#20295
15K
9.32 mi12:18:161:20:368:3927:17
8:47
#20466
20K
12.43 mi12:45:571:48:178:4327:41
8:55
#20484
Half
13.11 mi12:51:501:54:108:435:53
8:37
#20452
25K
15.53 mi13:15:192:17:398:5223:29
9:41
#20913
30K
18.64 mi13:46:282:48:489:0331:09
10:02
#21130
20M
20.00 mi14:00:063:02:269:0713:38
10:02
#21124
21M
21.00 mi14:10:343:12:549:1110:28
10:28
#21053
35K
21.75 mi14:17:523:20:129:127:18
9:45
#21050
23M
23.00 mi14:30:033:32:239:1412:11
9:44
#20966
24M
24.00 mi14:40:523:43:129:1810:49
10:49
#21126
40K
24.85 mi14:51:213:53:419:2410:29
12:16
#21391
25.2M
25.20 mi14:55:443:58:049:274:23
12:43
#21449
Finish
26.22 mi15:05:444:08:049:2810:00
9:49
#21482
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi20480126321263220939(Top 74%)12914(Top 80%)12914(Top 2021%)
10K6.21 mi3.10 mi20295+18512591+4112591+4120124(Top 71%)12536(Top 78%)12536(Top 1962%)
15K9.32 mi3.11 mi20466-17112676-8512676-8520939(Top 74%)12914(Top 80%)12914(Top 2021%)
20K12.43 mi3.11 mi20484-1812677-112677-120527(Top 72%)12684(Top 79%)12684(Top 1985%)
Half13.11 mi0.68 mi20452+3212659+1812659+1819918(Top 70%)12445(Top 77%)12445(Top 1948%)
25K15.53 mi2.42 mi20913-46112863-20412863-20422453(Top 79%)13486(Top 84%)13486(Top 2110%)
30K18.64 mi3.11 mi21130-21712916-5312916-5321672(Top 76%)13015(Top 81%)13015(Top 2037%)
20M20.00 mi1.36 mi21124+612889+2712889+2721054(Top 74%)12611(Top 78%)12611(Top 1974%)
21M21.00 mi1.00 mi21053+7112844+4512844+4519896(Top 70%)11996(Top 74%)11996(Top 1877%)
35K21.75 mi0.75 mi21050+312832+1212832+1221178(Top 75%)12523(Top 78%)12523(Top 1960%)
23M23.00 mi1.25 mi20966+8412770+6212770+6219553(Top 69%)11695(Top 73%)11695(Top 1830%)
24M24.00 mi1.00 mi21126-16012811-4112811-4123586(Top 83%)13608(Top 84%)13608(Top 2130%)
40K24.85 mi0.85 mi21391-26512921-11012921-11025320(Top 89%)14423(Top 90%)14423(Top 2257%)
25.2M25.20 mi0.35 mi21449-5812942-2112942-2124566(Top 86%)14041(Top 87%)14041(Top 2197%)
Finish26.22 mi1.02 mi21482-3312938+412938+422315(Top 79%)12927(Top 80%)12927(Top 2023%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

20939

Males

12914

M65-69

12914

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20124

Males

12536

M65-69

12536

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

20939

Males

12914

M65-69

12914

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20527

Males

12684

M65-69

12684

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19918

Males

12445

M65-69

12445

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

22453

Males

13486

M65-69

13486

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21672

Males

13015

M65-69

13015

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21054

Males

12611

M65-69

12611

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19896

Males

11996

M65-69

11996

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21178

Males

12523

M65-69

12523

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19553

Males

11695

M65-69

11695

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23586

Males

13608

M65-69

13608

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25320

Males

14423

M65-69

14423

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24566

Males

14041

M65-69

14041

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22315

Males

12927

M65-69

12927

Passing Analysis

Category:
Athletes Passed
1456
Passed By
2458
Net Change
-1002
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20480
5K → 10K398213+185#20480#20295
10K → 15K130301-171#20295#20466
15K → 20K179197-18#20466#20484
20K → Half4614+32#20484#20452
Half → 25K52513-461#20452#20913
25K → 30K143360-217#20913#21130
30K → 20M107101+6#21130#21124
20M → 21M12756+71#21124#21053
21M → 35K6764+3#21053#21050
35K → 23M12036+84#21050#20966
23M → 24M24184-160#20966#21126
24M → 40K10275-265#21126#21391
40K → 25.2M1068-58#21391#21449
25.2M → Finish4376-33#21449#21482
TOTALS14562458-1002
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing