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BOSTON MARATHON 2025

Jungyeon Park

Bib: 32539•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
10:07/mi
31:27
↑ 97↓ 3451.5%
10K· 6.21 mi
10:10/mi
1:03:03
↑ 79↓ 1380.4%
15K· 9.32 mi
10:15/mi
1:34:54
↑ 67↓ 78
20K· 12.43 mi
10:35/mi
2:07:46
↑ 106↓ 860.1%
Half· 13.11 mi
10:16/mi
2:14:46
↑ 19↓ 370.5%
25K· 15.53 mi
10:38/mi
2:40:33
↑ 66↓ 880.2%
30K· 18.64 mi
11:31/mi
3:16:21
↑ 181↓ 1480.2%
20M
11:38/mi
3:32:09
↑ 64↓ 500.2%
21M
12:20/mi
3:44:29
↑ 106↓ 241.6%
35K· 21.75 mi
11:47/mi
3:53:18
↑ 17↓ 861.7%
23M
11:39/mi
4:07:53
↑ 23↓ 630.6%
24M
11:35/mi
4:19:28
↓ 821.3%
40K· 24.85 mi
11:38/mi
4:29:25
↓ 200.3%
25.2M
12:19/mi
4:33:40
↑ 13↓ 160.2%
Finish· 26.22 mi
10:56/mi
4:44:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:46
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:30:03
Pace11:27 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:41:1431:2710:0731:27
10:07
-
10K
6.21 mi11:12:501:03:0310:0931:36
10:10
+0:03
15K
9.32 mi11:44:411:34:5410:1131:51
10:15
+0:05
20K
12.43 mi12:17:332:07:4610:1732:52
10:35
+0:20
Half
13.11 mi12:24:332:14:4610:177:00
10:16
-0:19
25K
15.53 mi12:50:202:40:3310:2025:47
10:38
+0:22
30K
18.64 mi13:26:083:16:2110:3235:48
11:31
+0:53
20M
20.00 mi13:41:563:32:0910:3615:48
11:38
+0:07
21M
21.00 mi13:54:163:44:2910:4112:20
12:20
+0:42
35K
21.75 mi14:03:053:53:1810:448:49
11:47
-0:33
23M
23.00 mi14:17:404:07:5310:4714:35
11:39
-0:08
24M
24.00 mi14:29:154:19:2810:4911:35
11:35
-0:04
40K
24.85 mi14:39:124:29:2510:509:57
11:38
+0:03
25.2M
25.20 mi14:43:274:33:4010:524:15
12:19
+0:41
Finish
26.22 mi14:54:364:44:4910:5211:09
10:56
-1:23

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

10:07 /mi

Average Pace

10:52 /mi

Slowest Pace

12:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:42

60% of race

Time at Steady Pace

1:36:32

34% of race

Time at Slower Pace

16:35

6% of race

Average Pace: 10:52 /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 mi10:41:1431:2710:0731:27
10:07
#25877
10K
6.21 mi11:12:501:03:0310:0931:36
10:10
#25757
15K
9.32 mi11:44:411:34:5410:1131:51
10:15
#25681
20K
12.43 mi12:17:332:07:4610:1732:52
10:35
#25572
Half
13.11 mi12:24:332:14:4610:177:00
10:16
#25566
25K
15.53 mi12:50:202:40:3310:2025:47
10:38
#25392
30K
18.64 mi13:26:083:16:2110:3235:48
11:31
#25300
20M
20.00 mi13:41:563:32:0910:3615:48
11:38
#25254
21M
21.00 mi13:54:163:44:2910:4112:20
12:20
#25211
35K
21.75 mi14:03:053:53:1810:448:49
11:47
#25222
23M
23.00 mi14:17:404:07:5310:4714:35
11:39
#25185
24M
24.00 mi14:29:154:19:2810:4911:35
11:35
#25188
40K
24.85 mi14:39:124:29:2510:509:57
11:38
#25166
25.2M
25.20 mi14:43:274:33:4010:524:15
12:19
#25154
Finish
26.22 mi14:54:364:44:4910:5211:09
10:56
#25169
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25877106941069425507(Top 90%)10509(Top 86%)10509(Top 192%)
10K6.21 mi3.10 mi25757+12010637+5710637+5725680(Top 90%)10625(Top 87%)10625(Top 194%)
15K9.32 mi3.11 mi25681+7610610+2710610+2725507(Top 90%)10509(Top 86%)10509(Top 192%)
20K12.43 mi3.11 mi25572+10910545+6510545+6525322(Top 89%)10440(Top 85%)10440(Top 191%)
Half13.11 mi0.68 mi25566+610544+110544+125361(Top 89%)10477(Top 86%)10477(Top 192%)
25K15.53 mi2.42 mi25392+17410471+7310471+7324606(Top 87%)10078(Top 82%)10078(Top 184%)
30K18.64 mi3.11 mi25300+9210449+2210449+2224874(Top 88%)10340(Top 85%)10340(Top 189%)
20M20.00 mi1.36 mi25254+4610440+910440+924746(Top 87%)10341(Top 85%)10341(Top 189%)
21M21.00 mi1.00 mi25211+4310429+1110429+1124141(Top 85%)10110(Top 83%)10110(Top 185%)
35K21.75 mi0.75 mi25222-1110439-1010439-1025541(Top 90%)10874(Top 89%)10874(Top 199%)
23M23.00 mi1.25 mi25185+3710436+310436+324499(Top 86%)10351(Top 85%)10351(Top 189%)
24M24.00 mi1.00 mi25188-310441-510441-525023(Top 88%)10646(Top 87%)10646(Top 195%)
40K24.85 mi0.85 mi25166+2210437+410437+424356(Top 86%)10362(Top 85%)10362(Top 189%)
25.2M25.20 mi0.35 mi25154+1210432+510432+523820(Top 84%)10092(Top 83%)10092(Top 185%)
Finish26.22 mi1.02 mi25169-1510451-1910451-1925248(Top 89%)10779(Top 88%)10779(Top 197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

25507

Females

10509

F18-39

10509

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25680

Females

10625

F18-39

10625

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

25507

Females

10509

F18-39

10509

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25322

Females

10440

F18-39

10440

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25361

Females

10477

F18-39

10477

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24606

Females

10078

F18-39

10078

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

24874

Females

10340

F18-39

10340

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24746

Females

10341

F18-39

10341

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24141

Females

10110

F18-39

10110

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25541

Females

10874

F18-39

10874

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

24499

Females

10351

F18-39

10351

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

25023

Females

10646

F18-39

10646

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24356

Females

10362

F18-39

10362

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23820

Females

10092

F18-39

10092

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25248

Females

10779

F18-39

10779

Passing Analysis

Category:
Athletes Passed
1329
Passed By
621
Net Change
+708
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25877
5K → 10K255135+120#25877#25757
10K → 15K17195+76#25757#25681
15K → 20K16960+109#25681#25572
20K → Half2317+6#25572#25566
Half → 25K20228+174#25566#25392
25K → 30K17179+92#25392#25300
30K → 20M7731+46#25300#25254
20M → 21M6421+43#25254#25211
21M → 35K2132-11#25211#25222
35K → 23M6528+37#25222#25185
23M → 24M2831-3#25185#25188
24M → 40K4119+22#25188#25166
40K → 25.2M197+12#25166#25154
25.2M → Finish2338-15#25154#25169
TOTALS1329621+708
📊

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