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BOSTON MARATHON 2025

Fan-Hua Kung

Bib: 18625•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
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
7:51/mi
24:22
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
49:34
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:16:00
↑ 67↓ 78
20K· 12.43 mi
8:51/mi
1:43:29
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:49:21
↑ 19↓ 370.5%
25K· 15.53 mi
9:33/mi
2:12:31
↑ 66↓ 880.2%
30K· 18.64 mi
10:15/mi
2:44:21
↑ 181↓ 1480.2%
20M
10:15/mi
2:58:17
↑ 64↓ 500.2%
21M
11:30/mi
3:09:47
↑ 106↓ 241.6%
35K· 21.75 mi
9:40/mi
3:17:01
↑ 17↓ 861.7%
23M
10:37/mi
3:30:19
↑ 23↓ 630.6%
24M
9:59/mi
3:40:18
↓ 821.3%
40K· 24.85 mi
10:21/mi
3:49:09
↓ 200.3%
25.2M
11:33/mi
3:53:08
↑ 13↓ 160.2%
Finish· 26.22 mi
9:30/mi
4:02:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:21
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:13:28
Pace10:11 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3224:227:5124:22
7:51
-
10K
6.21 mi11:40:4449:347:5925:12
8:07
+0:16
15K
9.32 mi12:07:101:16:008:0926:26
8:30
+0:23
20K
12.43 mi12:34:391:43:298:2027:29
8:51
+0:21
Half
13.11 mi12:40:311:49:218:205:52
8:36
-0:15
25K
15.53 mi13:03:412:12:318:3223:10
9:33
+0:57
30K
18.64 mi13:35:312:44:218:4931:50
10:15
+0:42
20M
20.00 mi13:49:272:58:178:5513:56
10:15
0:00
21M
21.00 mi14:00:573:09:479:0211:30
11:30
+1:15
35K
21.75 mi14:08:113:17:019:047:14
9:40
-1:50
23M
23.00 mi14:21:293:30:199:0913:18
10:37
+0:57
24M
24.00 mi14:31:283:40:189:119:59
9:59
-0:38
40K
24.85 mi14:40:193:49:099:138:51
10:21
+0:22
25.2M
25.20 mi14:44:183:53:089:153:59
11:33
+1:12
Finish
26.22 mi14:53:594:02:499:169:41
9:30
-2:03

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

7:51 /mi

Average Pace

9:16 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:21

45% of race

Time at Steady Pace

50:04

21% of race

Time at Slower Pace

1:23:24

34% of race

Average Pace: 9:16 /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 mi11:15:3224:227:5124:22
7:51
#15196
10K
6.21 mi11:40:4449:347:5925:12
8:07
#16321
15K
9.32 mi12:07:101:16:008:0926:26
8:30
#17449
20K
12.43 mi12:34:391:43:298:2027:29
8:51
#18167
Half
13.11 mi12:40:311:49:218:205:52
8:36
#18238
25K
15.53 mi13:03:412:12:318:3223:10
9:33
#19097
30K
18.64 mi13:35:312:44:218:4931:50
10:15
#19963
20M
20.00 mi13:49:272:58:178:5513:56
10:15
#20149
21M
21.00 mi14:00:573:09:479:0211:30
11:30
#20376
35K
21.75 mi14:08:113:17:019:047:14
9:40
#20396
23M
23.00 mi14:21:293:30:199:0913:18
10:37
#20564
24M
24.00 mi14:31:283:40:189:119:59
9:59
#20632
40K
24.85 mi14:40:193:49:099:138:51
10:21
#20696
25.2M
25.20 mi14:44:183:53:089:153:59
11:33
#20729
Finish
26.22 mi14:53:594:02:499:169:41
9:30
#20745
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15196105061050619373(Top 68%)12215(Top 76%)12215(Top 741%)
10K6.21 mi3.10 mi16321-112510943-43710943-43717280(Top 61%)11362(Top 71%)11362(Top 689%)
15K9.32 mi3.11 mi17449-112811420-47711420-47719373(Top 68%)12215(Top 76%)12215(Top 741%)
20K12.43 mi3.11 mi18167-71811682-26211682-26220180(Top 71%)12545(Top 78%)12545(Top 761%)
Half13.11 mi0.68 mi18238-7111707-2511707-2519798(Top 70%)12391(Top 77%)12391(Top 752%)
25K15.53 mi2.42 mi19097-85912074-36712074-36722043(Top 78%)13308(Top 83%)13308(Top 808%)
30K18.64 mi3.11 mi19963-86612403-32912403-32922302(Top 79%)13300(Top 83%)13300(Top 807%)
20M20.00 mi1.36 mi20149-18612456-5312456-5321716(Top 76%)12912(Top 80%)12912(Top 783%)
21M21.00 mi1.00 mi20376-22712537-8112537-8122605(Top 80%)13248(Top 82%)13248(Top 804%)
35K21.75 mi0.75 mi20396-2012531+612531+620890(Top 74%)12395(Top 77%)12395(Top 752%)
23M23.00 mi1.25 mi20564-16812585-5412585-5422323(Top 79%)13027(Top 81%)13027(Top 790%)
24M24.00 mi1.00 mi20632-6812600-1512600-1521311(Top 75%)12498(Top 78%)12498(Top 758%)
40K24.85 mi0.85 mi20696-6412616-1612616-1621523(Top 76%)12527(Top 78%)12527(Top 760%)
25.2M25.20 mi0.35 mi20729-3312618-212618-222157(Top 78%)12862(Top 80%)12862(Top 780%)
Finish26.22 mi1.02 mi20745-1612606+1212606+1221185(Top 75%)12382(Top 77%)12382(Top 751%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19373

Males

12215

M55-59

12215

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17280

Males

11362

M55-59

11362

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19373

Males

12215

M55-59

12215

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20180

Males

12545

M55-59

12545

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19798

Males

12391

M55-59

12391

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22043

Males

13308

M55-59

13308

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22302

Males

13300

M55-59

13300

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21716

Males

12912

M55-59

12912

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22605

Males

13248

M55-59

13248

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

20890

Males

12395

M55-59

12395

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22323

Males

13027

M55-59

13027

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21311

Males

12498

M55-59

12498

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21523

Males

12527

M55-59

12527

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22157

Males

12862

M55-59

12862

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21185

Males

12382

M55-59

12382

Passing Analysis

Category:
Athletes Passed
571
Passed By
6120
Net Change
-5549
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15196
5K → 10K591184-1125#15196#16321
10K → 15K381166-1128#16321#17449
15K → 20K48766-718#17449#18167
20K → Half2697-71#18167#18238
Half → 25K31890-859#18238#19097
25K → 30K52918-866#19097#19963
30K → 20M62248-186#19963#20149
20M → 21M34261-227#20149#20376
21M → 35K5171-20#20376#20396
35K → 23M47215-168#20396#20564
23M → 24M38106-68#20564#20632
24M → 40K3195-64#20632#20696
40K → 25.2M1649-33#20696#20729
25.2M → Finish3854-16#20729#20745
TOTALS5716120-5549
📊

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