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BOSTON MARATHON 2025

Alex Jen

Bib: 23054•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 35%
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
8:21/mi
25:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:23/mi
52:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:20/mi
1:17:54
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:44:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:49:48
↑ 19↓ 370.5%
25K· 15.53 mi
8:27/mi
2:10:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:42/mi
2:37:20
↑ 181↓ 1480.2%
20M
8:46/mi
2:49:15
↑ 64↓ 500.2%
21M
9:36/mi
2:58:51
↑ 106↓ 241.6%
35K· 21.75 mi
8:47/mi
3:05:25
↑ 17↓ 861.7%
23M
8:24/mi
3:15:56
↑ 23↓ 630.6%
24M
8:15/mi
3:24:11
↓ 821.3%
40K· 24.85 mi
8:11/mi
3:31:11
↓ 200.3%
25.2M
9:02/mi
3:34:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
3:42:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:48
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:52:43
Pace8:36 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5725:588:2125:58
8:21
-
10K
6.21 mi11:48:5952:008:2226:02
8:23
+0:02
15K
9.32 mi12:14:531:17:548:2125:54
8:20
-0:03
20K
12.43 mi12:41:001:44:018:2226:07
8:24
+0:04
Half
13.11 mi12:46:471:49:488:235:47
8:29
+0:05
25K
15.53 mi13:07:172:10:188:2320:30
8:27
-0:02
30K
18.64 mi13:34:192:37:208:2627:02
8:42
+0:15
20M
20.00 mi13:46:142:49:158:2811:55
8:46
+0:04
21M
21.00 mi13:55:502:58:518:319:36
9:36
+0:50
35K
21.75 mi14:02:243:05:258:326:34
8:47
-0:49
23M
23.00 mi14:12:553:15:568:3110:31
8:24
-0:23
24M
24.00 mi14:21:103:24:118:308:15
8:15
-0:09
40K
24.85 mi14:28:103:31:118:307:00
8:11
-0:04
25.2M
25.20 mi14:31:173:34:188:303:07
9:02
+0:51
Finish
26.22 mi14:39:303:42:318:308:13
8:04
-0:58

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

8:04 /mi

Average Pace

8:30 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:48

94% of race

Time at Steady Pace

3:07

1% of race

Time at Slower Pace

9:36

4% of race

Average Pace: 8:29 /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 mi11:22:5725:588:2125:58
8:21
#19049
10K
6.21 mi11:48:5952:008:2226:02
8:23
#19045
15K
9.32 mi12:14:531:17:548:2125:54
8:20
#18773
20K
12.43 mi12:41:001:44:018:2226:07
8:24
#18444
Half
13.11 mi12:46:471:49:488:235:47
8:29
#18487
25K
15.53 mi13:07:172:10:188:2320:30
8:27
#18185
30K
18.64 mi13:34:192:37:208:2627:02
8:42
#17730
20M
20.00 mi13:46:142:49:158:2811:55
8:46
#17537
21M
21.00 mi13:55:502:58:518:319:36
9:36
#17474
35K
21.75 mi14:02:243:05:258:326:34
8:47
#17444
23M
23.00 mi14:12:553:15:568:3110:31
8:24
#17138
24M
24.00 mi14:21:103:24:118:308:15
8:15
#16934
40K
24.85 mi14:28:103:31:118:307:00
8:11
#16718
25.2M
25.20 mi14:31:173:34:188:303:07
9:02
#16645
Finish
26.22 mi14:39:303:42:318:308:13
8:04
#16497
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19049120541205418288(Top 64%)11748(Top 73%)11748(Top 933%)
10K6.21 mi3.10 mi19045+412058-412058-419060(Top 67%)12083(Top 75%)12083(Top 960%)
15K9.32 mi3.11 mi18773+27211945+11311945+11318288(Top 64%)11748(Top 73%)11748(Top 933%)
20K12.43 mi3.11 mi18444+32911799+14611799+14617580(Top 62%)11432(Top 71%)11432(Top 908%)
Half13.11 mi0.68 mi18487-4311828-2911828-2918986(Top 67%)12026(Top 75%)12026(Top 955%)
25K15.53 mi2.42 mi18185+30211668+16011668+16016896(Top 59%)11051(Top 69%)11051(Top 878%)
30K18.64 mi3.11 mi17730+45511432+23611432+23616004(Top 56%)10499(Top 65%)10499(Top 834%)
20M20.00 mi1.36 mi17537+19311320+11211320+11215474(Top 54%)10137(Top 63%)10137(Top 805%)
21M21.00 mi1.00 mi17474+6311269+5111269+5116523(Top 58%)10482(Top 65%)10482(Top 833%)
35K21.75 mi0.75 mi17444+3011232+3711232+3717101(Top 60%)10649(Top 66%)10649(Top 846%)
23M23.00 mi1.25 mi17138+30611074+15811074+15812679(Top 45%)8564(Top 53%)8564(Top 680%)
24M24.00 mi1.00 mi16934+20410972+10210972+10212907(Top 45%)8611(Top 53%)8611(Top 684%)
40K24.85 mi0.85 mi16718+21610848+12410848+12411480(Top 40%)7815(Top 49%)7815(Top 621%)
25.2M25.20 mi0.35 mi16645+7310810+3810810+3812003(Top 42%)8014(Top 50%)8014(Top 637%)
Finish26.22 mi1.02 mi16497+14810727+8310727+8313307(Top 47%)8673(Top 54%)8673(Top 689%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18288

Males

11748

M60-64

11748

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

19060

Males

12083

M60-64

12083

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18288

Males

11748

M60-64

11748

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17580

Males

11432

M60-64

11432

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

18986

Males

12026

M60-64

12026

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16896

Males

11051

M60-64

11051

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

16004

Males

10499

M60-64

10499

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15474

Males

10137

M60-64

10137

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16523

Males

10482

M60-64

10482

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

17101

Males

10649

M60-64

10649

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12679

Males

8564

M60-64

8564

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12907

Males

8611

M60-64

8611

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11480

Males

7815

M60-64

7815

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

12003

Males

8014

M60-64

8014

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13307

Males

8673

M60-64

8673

Passing Analysis

Category:
Athletes Passed
3259
Passed By
707
Net Change
+2552
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19049
5K → 10K263259+4#19049#19045
10K → 15K34169+272#19045#18773
15K → 20K38758+329#18773#18444
20K → Half2366-43#18444#18487
Half → 25K33533+302#18487#18185
25K → 30K49338+455#18185#17730
30K → 20M21219+193#17730#17537
20M → 21M13370+63#17537#17474
21M → 35K8252+30#17474#17444
35K → 23M31610+306#17444#17138
23M → 24M21410+204#17138#16934
24M → 40K2215+216#16934#16718
40K → 25.2M785+73#16718#16645
25.2M → Finish16113+148#16645#16497
TOTALS3259707+2552
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing