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BOSTON MARATHON 2025

Jongmoon Lee

Bib: 10228•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 33%
Gender (Male)
#0 / 16105
Top 46%
Masters (Masters Men)
#0 / 10463
Top 34%
Division (M60-64)
#0 / 1259
Top 6%
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
7:06/mi
22:04
↑ 97↓ 3451.5%
10K· 6.21 mi
6:54/mi
43:31
↑ 79↓ 1380.4%
15K· 9.32 mi
6:56/mi
1:05:05
↑ 67↓ 78
20K· 12.43 mi
7:10/mi
1:27:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:05/mi
1:32:12
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:50:01
↑ 66↓ 880.2%
30K· 18.64 mi
7:42/mi
2:13:57
↑ 181↓ 1480.2%
20M
7:52/mi
2:24:38
↑ 64↓ 500.2%
21M
8:40/mi
2:33:18
↑ 106↓ 241.6%
35K· 21.75 mi
7:41/mi
2:39:03
↑ 17↓ 861.7%
23M
8:10/mi
2:49:16
↑ 23↓ 630.6%
24M
8:08/mi
2:57:24
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:04:41
↓ 200.3%
25.2M
9:49/mi
3:08:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
3:17:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:12
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:45:00
Pace8:01 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0722:047:0622:04
7:06
-
10K
6.21 mi11:09:3443:317:0021:27
6:54
-0:12
15K
9.32 mi11:31:081:05:056:5921:34
6:56
+0:02
20K
12.43 mi11:53:251:27:227:0222:17
7:10
+0:14
Half
13.11 mi11:58:151:32:127:024:50
7:05
-0:05
25K
15.53 mi12:16:041:50:017:0517:49
7:21
+0:16
30K
18.64 mi12:40:002:13:577:1123:56
7:42
+0:21
20M
20.00 mi12:50:412:24:387:1410:41
7:52
+0:10
21M
21.00 mi12:59:212:33:187:188:40
8:40
+0:48
35K
21.75 mi13:05:062:39:037:195:45
7:41
-0:59
23M
23.00 mi13:15:192:49:167:2210:13
8:10
+0:29
24M
24.00 mi13:23:272:57:247:248:08
8:08
-0:02
40K
24.85 mi13:30:443:04:417:267:17
8:31
+0:23
25.2M
25.20 mi13:34:073:08:047:283:23
9:49
+1:18
Finish
26.22 mi13:43:153:17:127:329:08
8:58
-0:51

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

6:54 /mi

Average Pace

7:32 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:12

47% of race

Time at Steady Pace

58:11

30% of race

Time at Slower Pace

46:49

24% of race

Average Pace: 7:31 /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 mi10:48:0722:047:0622:04
7:06
#8660
10K
6.21 mi11:09:3443:317:0021:27
6:54
#7882
15K
9.32 mi11:31:081:05:056:5921:34
6:56
#7645
20K
12.43 mi11:53:251:27:227:0222:17
7:10
#7693
Half
13.11 mi11:58:151:32:127:024:50
7:05
#7703
25K
15.53 mi12:16:041:50:017:0517:49
7:21
#7807
30K
18.64 mi12:40:002:13:577:1123:56
7:42
#7938
20M
20.00 mi12:50:412:24:387:1410:41
7:52
#7995
21M
21.00 mi12:59:212:33:187:188:40
8:40
#8135
35K
21.75 mi13:05:062:39:037:195:45
7:41
#8164
23M
23.00 mi13:15:192:49:167:2210:13
8:10
#8302
24M
24.00 mi13:23:272:57:247:248:08
8:08
#8444
40K
24.85 mi13:30:443:04:417:267:17
8:31
#8633
25.2M
25.20 mi13:34:073:08:047:283:23
9:49
#8780
Finish
26.22 mi13:43:153:17:127:329:08
8:58
#9268
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi8660741874187247(Top 26%)6435(Top 40%)6435(Top 511%)
10K6.21 mi3.10 mi7882+7786902+5166902+5167260(Top 26%)6482(Top 40%)6482(Top 515%)
15K9.32 mi3.11 mi7645+2376740+1626740+1627247(Top 26%)6435(Top 40%)6435(Top 511%)
20K12.43 mi3.11 mi7693-486763-236763-237984(Top 28%)6867(Top 43%)6867(Top 545%)
Half13.11 mi0.68 mi7703-106766-36766-38172(Top 29%)7011(Top 44%)7011(Top 557%)
25K15.53 mi2.42 mi7807-1046812-466812-468718(Top 31%)7183(Top 45%)7183(Top 571%)
30K18.64 mi3.11 mi7938-1316833-216833-219210(Top 32%)7259(Top 45%)7259(Top 577%)
20M20.00 mi1.36 mi7995-576830+36830+39433(Top 33%)7224(Top 45%)7224(Top 574%)
21M21.00 mi1.00 mi8135-1406893-636893-6311442(Top 40%)8086(Top 50%)8086(Top 642%)
35K21.75 mi0.75 mi8164-296891+26891+29926(Top 35%)7326(Top 45%)7326(Top 582%)
23M23.00 mi1.25 mi8302-1386930-396930-3911090(Top 39%)7785(Top 48%)7785(Top 618%)
24M24.00 mi1.00 mi8444-1426978-486978-4812099(Top 43%)8205(Top 51%)8205(Top 652%)
40K24.85 mi0.85 mi8633-1897048-707048-7013508(Top 48%)8752(Top 54%)8752(Top 695%)
25.2M25.20 mi0.35 mi8780-1477118-707118-7016052(Top 57%)9877(Top 61%)9877(Top 785%)
Finish26.22 mi1.02 mi9268-4887359-2417359-24118814(Top 66%)11263(Top 70%)11263(Top 895%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7247

Males

6435

M60-64

6435

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

7260

Males

6482

M60-64

6482

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7247

Males

6435

M60-64

6435

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7984

Males

6867

M60-64

6867

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8172

Males

7011

M60-64

7011

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8718

Males

7183

M60-64

7183

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

9210

Males

7259

M60-64

7259

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9433

Males

7224

M60-64

7224

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11442

Males

8086

M60-64

8086

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9926

Males

7326

M60-64

7326

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

11090

Males

7785

M60-64

7785

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

12099

Males

8205

M60-64

8205

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13508

Males

8752

M60-64

8752

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16052

Males

9877

M60-64

9877

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18814

Males

11263

M60-64

11263

Passing Analysis

Category:
Athletes Passed
1822
Passed By
2430
Net Change
-608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8660
5K → 10K80224+778#8660#7882
10K → 15K27437+237#7882#7645
15K → 20K127175-48#7645#7693
20K → Half2030-10#7693#7703
Half → 25K80184-104#7703#7807
25K → 30K152283-131#7807#7938
30K → 20M80137-57#7938#7995
20M → 21M60200-140#7995#8135
21M → 35K5483-29#8135#8164
35K → 23M71209-138#8164#8302
23M → 24M42184-142#8302#8444
24M → 40K41230-189#8444#8633
40K → 25.2M9156-147#8633#8780
25.2M → Finish10498-488#8780#9268
TOTALS18222430-608
📊

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