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BOSTON MARATHON 2025

John Lee

NC

Bib: 7505 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 43%
Masters (Masters Men)
#0 / 10463
Top 31%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:09/mi
22:12
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:19/mi
44:55
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:23/mi
1:07:51
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:24/mi
1:30:49
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:11/mi
1:35:43
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:32/mi
1:53:59
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:34/mi
2:17:30
↑ 181↓ 1480.2%
138 ft elev
20M
7:34/mi
2:27:47
↑ 64↓ 500.2%
148 ft elev
21M
7:57/mi
2:35:44
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:14/mi
2:41:09
↑ 17↓ 861.7%
156 ft elev
23M
7:36/mi
2:50:40
↑ 23↓ 630.6%
116 ft elev
24M
7:14/mi
2:57:54
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:35/mi
3:04:23
↓ 200.3%
20 ft elev
25.2M
7:58/mi
3:07:08
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:23/mi
3:14:39
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:43
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:38:56
Pace7:33 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:4822:127:0922:12
7:09
-
10K
6.21 mi10:52:3144:557:1422:43
7:19
+0:10
15K
9.32 mi11:15:271:07:517:1722:56
7:23
+0:04
20K
12.43 mi11:38:251:30:497:1822:58
7:24
+0:01
Half
13.11 mi11:43:191:35:437:184:54
7:11
-0:13
25K
15.53 mi12:01:351:53:597:2018:16
7:32
+0:21
30K
18.64 mi12:25:062:17:307:2323:31
7:34
+0:02
20M
20.00 mi12:35:232:27:477:2310:17
7:34
0:00
21M
21.00 mi12:43:202:35:447:257:57
7:57
+0:23
35K
21.75 mi12:48:452:41:097:255:25
7:14
-0:43
23M
23.00 mi12:58:162:50:407:259:31
7:36
+0:22
24M
24.00 mi13:05:302:57:547:257:14
7:14
-0:22
40K
24.85 mi13:11:593:04:237:256:29
7:35
+0:21
25.2M
25.20 mi13:14:443:07:087:262:45
7:58
+0:23
Finish
26.22 mi13:22:153:14:397:267:31
7:23
-0:35

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

7:09 /mi

Average Pace

7:26 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:57

95% of race

Time at Steady Pace

10:42

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:29:4822:127:0922:12
7:09
#9014
10K
6.21 mi10:52:3144:557:1422:43
7:19
#9700
15K
9.32 mi11:15:271:07:517:1722:56
7:23
#10033
20K
12.43 mi11:38:251:30:497:1822:58
7:24
#9944
Half
13.11 mi11:43:191:35:437:184:54
7:11
#9890
25K
15.53 mi12:01:351:53:597:2018:16
7:32
#9884
30K
18.64 mi12:25:062:17:307:2323:31
7:34
#9496
20M
20.00 mi12:35:232:27:477:2310:17
7:34
#9298
21M
21.00 mi12:43:202:35:447:257:57
7:57
#9123
35K
21.75 mi12:48:452:41:097:255:25
7:14
#8999
23M
23.00 mi12:58:162:50:407:259:31
7:36
#8807
24M
24.00 mi13:05:302:57:547:257:14
7:14
#8628
40K
24.85 mi13:11:593:04:237:256:29
7:35
#8524
25.2M
25.20 mi13:14:443:07:087:262:45
7:58
#8450
Finish
26.22 mi13:22:153:14:397:267:31
7:23
#8428
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi90147616761610673(Top 38%)8433(Top 52%)8433(Top 375%)
10K6.21 mi3.10 mi9700-6868010-3948010-39410424(Top 37%)8364(Top 52%)8364(Top 372%)
15K9.32 mi3.11 mi10033-3338149-1398149-13910673(Top 38%)8433(Top 52%)8433(Top 375%)
20K12.43 mi3.11 mi9944+898081+688081+689823(Top 35%)7907(Top 49%)7907(Top 352%)
Half13.11 mi0.68 mi9890+548045+368045+368887(Top 31%)7409(Top 46%)7409(Top 330%)
25K15.53 mi2.42 mi9884+68004+418004+4110221(Top 36%)7990(Top 50%)7990(Top 356%)
30K18.64 mi3.11 mi9496+3887748+2567748+2568204(Top 29%)6706(Top 42%)6706(Top 298%)
20M20.00 mi1.36 mi9298+1987599+1497599+1497456(Top 26%)6116(Top 38%)6116(Top 272%)
21M21.00 mi1.00 mi9123+1757472+1277472+1277078(Top 25%)5729(Top 36%)5729(Top 255%)
35K21.75 mi0.75 mi8999+1247380+927380+926861(Top 24%)5620(Top 35%)5620(Top 250%)
23M23.00 mi1.25 mi8807+1927227+1537227+1537248(Top 26%)5728(Top 36%)5728(Top 255%)
24M24.00 mi1.00 mi8628+1797091+1367091+1366029(Top 21%)4943(Top 31%)4943(Top 220%)
40K24.85 mi0.85 mi8524+1046990+1016990+1017301(Top 26%)5607(Top 35%)5607(Top 250%)
25.2M25.20 mi0.35 mi8450+746931+596931+595810(Top 20%)4635(Top 29%)4635(Top 206%)
Finish26.22 mi1.02 mi8428+226893+386893+388310(Top 29%)6086(Top 38%)6086(Top 271%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10673

Males

8433

M40-44

8433

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10424

Males

8364

M40-44

8364

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10673

Males

8433

M40-44

8433

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9823

Males

7907

M40-44

7907

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8887

Males

7409

M40-44

7409

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10221

Males

7990

M40-44

7990

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8204

Males

6706

M40-44

6706

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7456

Males

6116

M40-44

6116

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7078

Males

5729

M40-44

5729

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6861

Males

5620

M40-44

5620

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7248

Males

5728

M40-44

5728

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

6029

Males

4943

M40-44

4943

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7301

Males

5607

M40-44

5607

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5810

Males

4635

M40-44

4635

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8310

Males

6086

M40-44

6086

Passing Analysis

Category:
Athletes Passed
2236
Passed By
1647
Net Change
+586
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9014
5K → 10K58743-686#9014#9700
10K → 15K75406-333#9700#10033
15K → 20K220131+89#10033#9944
20K → Half606+54#9944#9890
Half → 25K157151+6#9890#9884
25K → 30K43648+388#9884#9496
30K → 20M21416+198#9496#9298
20M → 21M19621+175#9298#9123
21M → 35K1328+124#9123#8999
35K → 23M21422+192#8999#8807
23M → 24M1845+179#8807#8628
24M → 40K13430+104#8628#8524
40K → 25.2M8410+74#8524#8450
25.2M → Finish7250+22#8450#8428
TOTALS22361647+586
📊

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