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BOSTON MARATHON 2025

Junhee Lee

Bib: 10501•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 32%
Gender (Male)
#0 / 16105
Top 45%
Masters (Masters Men)
#0 / 10463
Top 33%
Division (M55-59)
#0 / 1648
Top 14%
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
7:08/mi
22:11
↑ 97↓ 3451.5%
10K· 6.21 mi
6:58/mi
43:49
↑ 79↓ 1380.4%
15K· 9.32 mi
7:01/mi
1:05:37
↑ 67↓ 78
20K· 12.43 mi
7:12/mi
1:27:58
↑ 106↓ 860.1%
Half· 13.11 mi
7:04/mi
1:32:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:22/mi
1:50:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:15:28
↑ 181↓ 1480.2%
20M
8:06/mi
2:26:28
↑ 64↓ 500.2%
21M
8:48/mi
2:35:16
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:41:05
↑ 17↓ 861.7%
23M
8:06/mi
2:51:13
↑ 23↓ 630.6%
24M
7:49/mi
2:59:02
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:05:40
↓ 200.3%
25.2M
8:33/mi
3:08:37
↑ 13↓ 160.2%
Finish· 26.22 mi
7:31/mi
3:16:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:47
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:43:30
Pace7:54 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5622:117:0822:11
7:08
-
10K
6.21 mi11:09:3443:497:0321:38
6:58
-0:10
15K
9.32 mi11:31:221:05:377:0221:48
7:01
+0:03
20K
12.43 mi11:53:431:27:587:0522:21
7:12
+0:11
Half
13.11 mi11:58:321:32:477:054:49
7:04
-0:08
25K
15.53 mi12:16:241:50:397:0717:52
7:22
+0:18
30K
18.64 mi12:41:132:15:287:1624:49
7:59
+0:37
20M
20.00 mi12:52:132:26:287:1911:00
8:06
+0:07
21M
21.00 mi13:01:012:35:167:248:48
8:48
+0:42
35K
21.75 mi13:06:502:41:057:245:49
7:46
-1:02
23M
23.00 mi13:16:582:51:137:2710:08
8:06
+0:20
24M
24.00 mi13:24:472:59:027:287:49
7:49
-0:17
40K
24.85 mi13:31:253:05:407:286:38
7:45
-0:04
25.2M
25.20 mi13:34:223:08:377:292:57
8:33
+0:48
Finish
26.22 mi13:42:023:16:177:307:40
7:31
-1:02

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

6:58 /mi

Average Pace

7:30 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:39

56% of race

Time at Steady Pace

52:45

27% of race

Time at Slower Pace

32:53

17% of race

Average Pace: 7:29 /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 mi10:47:5622:117:0822:11
7:08
#8959
10K
6.21 mi11:09:3443:497:0321:38
6:58
#8266
15K
9.32 mi11:31:221:05:377:0221:48
7:01
#8036
20K
12.43 mi11:53:431:27:587:0522:21
7:12
#8026
Half
13.11 mi11:58:321:32:477:054:49
7:04
#8011
25K
15.53 mi12:16:241:50:397:0717:52
7:22
#8087
30K
18.64 mi12:41:132:15:287:1624:49
7:59
#8568
20M
20.00 mi12:52:132:26:287:1911:00
8:06
#8727
21M
21.00 mi13:01:012:35:167:248:48
8:48
#8931
35K
21.75 mi13:06:502:41:057:245:49
7:46
#8971
23M
23.00 mi13:16:582:51:137:2710:08
8:06
#9027
24M
24.00 mi13:24:472:59:027:287:49
7:49
#9026
40K
24.85 mi13:31:253:05:407:286:38
7:45
#8967
25.2M
25.20 mi13:34:223:08:377:292:57
8:33
#8961
Finish
26.22 mi13:42:023:16:177:307:40
7:31
#8950
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi8959758575857733(Top 27%)6766(Top 42%)6766(Top 411%)
10K6.21 mi3.10 mi8266+6937152+4337152+4337676(Top 27%)6766(Top 42%)6766(Top 411%)
15K9.32 mi3.11 mi8036+2306998+1546998+1547733(Top 27%)6766(Top 42%)6766(Top 411%)
20K12.43 mi3.11 mi8026+106970+286970+288146(Top 29%)6960(Top 43%)6960(Top 422%)
Half13.11 mi0.68 mi8011+156964+66964+68004(Top 28%)6905(Top 43%)6905(Top 419%)
25K15.53 mi2.42 mi8087-766981-176981-178881(Top 31%)7270(Top 45%)7270(Top 441%)
30K18.64 mi3.11 mi8568-4817219-2387219-23811269(Top 40%)8321(Top 52%)8321(Top 505%)
20M20.00 mi1.36 mi8727-1597274-557274-5511040(Top 39%)8039(Top 50%)8039(Top 488%)
21M21.00 mi1.00 mi8931-2047361-877361-8712259(Top 43%)8484(Top 53%)8484(Top 515%)
35K21.75 mi0.75 mi8971-407365-47365-410574(Top 37%)7643(Top 47%)7643(Top 464%)
23M23.00 mi1.25 mi9027-567350+157350+1510672(Top 38%)7567(Top 47%)7567(Top 459%)
24M24.00 mi1.00 mi9026+17321+297321+299897(Top 35%)7106(Top 44%)7106(Top 431%)
40K24.85 mi0.85 mi8967+597249+727249+728458(Top 30%)6232(Top 39%)6232(Top 378%)
25.2M25.20 mi0.35 mi8961+67227+227227+229056(Top 32%)6475(Top 40%)6475(Top 393%)
Finish26.22 mi1.02 mi8950+117180+477180+479334(Top 33%)6620(Top 41%)6620(Top 402%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7733

Males

6766

M55-59

6766

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7676

Males

6766

M55-59

6766

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7733

Males

6766

M55-59

6766

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8146

Males

6960

M55-59

6960

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

8004

Males

6905

M55-59

6905

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8881

Males

7270

M55-59

7270

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11269

Males

8321

M55-59

8321

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11040

Males

8039

M55-59

8039

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12259

Males

8484

M55-59

8484

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10574

Males

7643

M55-59

7643

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10672

Males

7567

M55-59

7567

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9897

Males

7106

M55-59

7106

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8458

Males

6232

M55-59

6232

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

9056

Males

6475

M55-59

6475

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9334

Males

6620

M55-59

6620

Passing Analysis

Category:
Athletes Passed
1945
Passed By
1936
Net Change
+9
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8959
5K → 10K72532+693#8959#8266
10K → 15K27646+230#8266#8036
15K → 20K147137+10#8036#8026
20K → Half3823+15#8026#8011
Half → 25K107183-76#8011#8087
25K → 30K92573-481#8087#8568
30K → 20M59218-159#8568#8727
20M → 21M43247-204#8727#8931
21M → 35K60100-40#8931#8971
35K → 23M96152-56#8971#9027
23M → 24M7170+1#9027#9026
24M → 40K11152+59#9026#8967
40K → 25.2M4236+6#8967#8961
25.2M → Finish7867+11#8961#8950
TOTALS19451936+9
📊

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