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BOSTON MARATHON 2025

Ling-Ju Kung

Bib: 30738•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:28
Rank: #25886
Start → 5K
10:08/mi
31:28 split
10K· 6.21 mi
1:02:01
Rank: #25393 (+493)
5K → 10K
9:50/mi
30:33 split
15K· 9.32 mi
1:34:36
Rank: #25618 (-225)
10K → 15K
10:29/mi
32:35 split
20K· 12.43 mi
2:07:51
Rank: #25589 (+29)
15K → 20K
10:42/mi
33:15 split
Half· 13.11 mi
2:14:55
Rank: #25588 (+1)
20K → Half
10:21/mi
7:04 split
25K· 15.53 mi
2:45:37
Rank: #25982 (-394)
Half → 25K
12:40/mi
30:42 split
30K· 18.64 mi
3:26:38
Rank: #26211 (-229)
25K → 30K
13:12/mi
41:01 split
20M
3:44:53
Rank: #26283 (-72)
30K → 20M
13:26/mi
18:15 split
21M
4:00:05
Rank: #26386 (-103)
20M → 21M
15:12/mi
15:12 split
35K· 21.75 mi
4:09:28
Rank: #26396 (-10)
21M → 35K
12:33/mi
9:23 split
23M
4:25:01
Rank: #26375 (+21)
35K → 23M
12:25/mi
15:33 split
24M
4:36:43
Rank: #26320 (+55)
23M → 24M
11:42/mi
11:42 split
40K· 24.85 mi
4:46:22
Rank: #26248 (+72)
24M → 40K
11:17/mi
9:39 split
25.2M
4:50:51
Rank: #26235 (+13)
40K → 25.2M
13:00/mi
4:29 split
Finish· 26.22 mi
5:01:41
Rank: #26214 (+21)
25.2M → Finish
10:38/mi
10:50 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:55
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:46:46
Pace12:43 /mi
📊Positive Split: 23.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2031:2810:0831:28
10:08
-
10K
6.21 mi12:21:531:02:019:5930:33
9:50
-0:18
15K
9.32 mi12:54:281:34:3610:0932:35
10:29
+0:39
20K
12.43 mi13:27:432:07:5110:1733:15
10:42
+0:13
Half
13.11 mi13:34:472:14:5510:177:04
10:21
-0:21
25K
15.53 mi14:05:292:45:3710:4030:42
12:40
+2:19
30K
18.64 mi14:46:303:26:3811:0541:01
13:12
+0:32
20M
20.00 mi15:04:453:44:5311:1518:15
13:26
+0:14
21M
21.00 mi15:19:574:00:0511:2615:12
15:12
+1:46
35K
21.75 mi15:29:204:09:2811:289:23
12:33
-2:39
23M
23.00 mi15:44:534:25:0111:3115:33
12:25
-0:08
24M
24.00 mi15:56:354:36:4311:3211:42
11:42
-0:43
40K
24.85 mi16:06:144:46:2211:319:39
11:17
-0:25
25.2M
25.20 mi16:10:434:50:5111:334:29
13:00
+1:43
Finish
26.22 mi16:21:335:01:4111:3110:50
10:38
-2:22

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

9:50 /mi

Average Pace

11:31 /mi

Slowest Pace

15:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:45

48% of race

Time at Steady Pace

36:54

12% of race

Time at Slower Pace

1:59:02

39% of race

Average Pace: 11:30 /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 mi11:51:2031:2810:0831:28
10:08
#25886
10K
6.21 mi12:21:531:02:019:5930:33
9:50
#25393
15K
9.32 mi12:54:281:34:3610:0932:35
10:29
#25618
20K
12.43 mi13:27:432:07:5110:1733:15
10:42
#25589
Half
13.11 mi13:34:472:14:5510:177:04
10:21
#25588
25K
15.53 mi14:05:292:45:3710:4030:42
12:40
#25982
30K
18.64 mi14:46:303:26:3811:0541:01
13:12
#26211
20M
20.00 mi15:04:453:44:5311:1518:15
13:26
#26283
21M
21.00 mi15:19:574:00:0511:2615:12
15:12
#26386
35K
21.75 mi15:29:204:09:2811:289:23
12:33
#26396
23M
23.00 mi15:44:534:25:0111:3115:33
12:25
#26375
24M
24.00 mi15:56:354:36:4311:3211:42
11:42
#26320
40K
24.85 mi16:06:144:46:2211:319:39
11:17
#26248
25.2M
25.20 mi16:10:434:50:5111:334:29
13:00
#26235
Finish
26.22 mi16:21:335:01:4111:3110:50
10:38
#26214
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi25886106991069925915(Top 91%)10747(Top 88%)10747(Top 1081%)
10K6.21 mi3.10 mi25393+49310448+25110448+25124940(Top 88%)10206(Top 83%)10206(Top 1027%)
15K9.32 mi3.11 mi25618-22510569-12110569-12125915(Top 91%)10747(Top 88%)10747(Top 1081%)
20K12.43 mi3.11 mi25589+2910556+1310556+1325540(Top 90%)10563(Top 86%)10563(Top 1063%)
Half13.11 mi0.68 mi25588+110554+210554+225535(Top 90%)10571(Top 86%)10571(Top 1063%)
25K15.53 mi2.42 mi25982-39410787-23310787-23327049(Top 95%)11457(Top 94%)11457(Top 1153%)
30K18.64 mi3.11 mi26211-22910943-15610943-15626868(Top 95%)11414(Top 93%)11414(Top 1148%)
20M20.00 mi1.36 mi26283-7210993-5010993-5026816(Top 94%)11460(Top 94%)11460(Top 1153%)
21M21.00 mi1.00 mi26386-10311065-7211065-7227311(Top 96%)11732(Top 96%)11732(Top 1180%)
35K21.75 mi0.75 mi26396-1011078-1311078-1326492(Top 93%)11332(Top 93%)11332(Top 1140%)
23M23.00 mi1.25 mi26375+2111074+411074+425681(Top 90%)10946(Top 90%)10946(Top 1101%)
24M24.00 mi1.00 mi26320+5511060+1411060+1425235(Top 89%)10745(Top 88%)10745(Top 1081%)
40K24.85 mi0.85 mi26248+7211028+3211028+3223722(Top 84%)10046(Top 82%)10046(Top 1011%)
25.2M25.20 mi0.35 mi26235+1311020+811020+825011(Top 88%)10697(Top 87%)10697(Top 1076%)
Finish26.22 mi1.02 mi26214+2111013+711013+724557(Top 86%)10436(Top 85%)10436(Top 1050%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

25915

Females

10747

F55-59

10747

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

24940

Females

10206

F55-59

10206

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

25915

Females

10747

F55-59

10747

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

25540

Females

10563

F55-59

10563

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25535

Females

10571

F55-59

10571

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

27049

Females

11457

F55-59

11457

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

26868

Females

11414

F55-59

11414

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

26816

Females

11460

F55-59

11460

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27311

Females

11732

F55-59

11732

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26492

Females

11332

F55-59

11332

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25681

Females

10946

F55-59

10946

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

25235

Females

10745

F55-59

10745

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23722

Females

10046

F55-59

10046

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

25011

Females

10697

F55-59

10697

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24557

Females

10436

F55-59

10436

Passing Analysis

Category:
Athletes Passed
1121
Passed By
1449
Net Change
-328
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25886
5K → 10K52633+493#25886#25393
10K → 15K61286-225#25393#25618
15K → 20K137108+29#25618#25589
20K → Half2120+1#25589#25588
Half → 25K17411-394#25588#25982
25K → 30K47276-229#25982#26211
30K → 20M32104-72#26211#26283
20M → 21M15118-103#26283#26386
21M → 35K2131-10#26386#26396
35K → 23M4524+21#26396#26375
23M → 24M649+55#26375#26320
24M → 40K775+72#26320#26248
40K → 25.2M196+13#26248#26235
25.2M → Finish3918+21#26235#26214
TOTALS11211449-328
📊

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