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BOSTON MARATHON 2025

Wai Fan Kong

Bib: 23557•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

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
8:56/mi
27:46
↑ 97↓ 3451.5%
10K· 6.21 mi
9:05/mi
55:59
↑ 79↓ 1380.4%
15K· 9.32 mi
9:06/mi
1:24:15
↑ 67↓ 78
20K· 12.43 mi
9:29/mi
1:53:42
↑ 106↓ 860.1%
Half· 13.11 mi
9:58/mi
2:00:30
↑ 19↓ 370.5%
25K· 15.53 mi
10:41/mi
2:26:23
↑ 66↓ 880.2%
30K· 18.64 mi
10:55/mi
3:00:19
↑ 181↓ 1480.2%
20M
11:41/mi
3:16:11
↑ 64↓ 500.2%
21M
12:35/mi
3:28:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
3:35:09
↑ 17↓ 861.7%
23M
9:04/mi
3:46:30
↑ 23↓ 630.6%
24M
10:08/mi
3:56:38
↓ 821.3%
40K· 24.85 mi
9:23/mi
4:04:39
↓ 200.3%
25.2M
9:49/mi
4:08:02
↑ 13↓ 160.2%
Finish· 26.22 mi
8:35/mi
4:16:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:30
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:16:17
Pace10:24 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4227:468:5627:46
8:56
-
10K
6.21 mi11:53:5555:599:0128:13
9:05
+0:09
15K
9.32 mi12:22:111:24:159:0228:16
9:06
+0:01
20K
12.43 mi12:51:381:53:429:0929:27
9:29
+0:23
Half
13.11 mi12:58:262:00:309:126:48
9:58
+0:29
25K
15.53 mi13:24:192:26:239:2525:53
10:41
+0:43
30K
18.64 mi13:58:153:00:199:4033:56
10:55
+0:14
20M
20.00 mi14:14:073:16:119:4915:52
11:41
+0:46
21M
21.00 mi14:26:423:28:469:5612:35
12:35
+0:54
35K
21.75 mi14:33:053:35:099:546:23
8:32
-4:03
23M
23.00 mi14:44:263:46:309:5111:21
9:04
+0:32
24M
24.00 mi14:54:343:56:389:5210:08
10:08
+1:04
40K
24.85 mi15:02:354:04:399:518:01
9:23
-0:45
25.2M
25.20 mi15:05:584:08:029:513:23
9:49
+0:26
Finish
26.22 mi15:14:434:16:479:488:45
8:35
-1:14

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

8:32 /mi

Average Pace

9:48 /mi

Slowest Pace

12:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:08

6% of race

Time at Steady Pace

2:23:15

56% of race

Time at Slower Pace

1:38:24

38% of race

Average Pace: 9:48 /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 mi11:25:4227:468:5627:46
8:56
#22170
10K
6.21 mi11:53:5555:599:0128:13
9:05
#22476
15K
9.32 mi12:22:111:24:159:0228:16
9:06
#22443
20K
12.43 mi12:51:381:53:429:0929:27
9:29
#22580
Half
13.11 mi12:58:262:00:309:126:48
9:58
#22747
25K
15.53 mi13:24:192:26:239:2525:53
10:41
#23185
30K
18.64 mi13:58:153:00:199:4033:56
10:55
#23315
20M
20.00 mi14:14:073:16:119:4915:52
11:41
#23457
21M
21.00 mi14:26:423:28:469:5612:35
12:35
#23558
35K
21.75 mi14:33:053:35:099:546:23
8:32
#23340
23M
23.00 mi14:44:263:46:309:5111:21
9:04
#23048
24M
24.00 mi14:54:343:56:389:5210:08
10:08
#22982
40K
24.85 mi15:02:354:04:399:518:01
9:23
#22802
25.2M
25.20 mi15:05:584:08:029:513:23
9:49
#22716
Finish
26.22 mi15:14:434:16:479:488:45
8:35
#22568
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi221708719871922459(Top 79%)8808(Top 72%)8808(Top 886%)
10K6.21 mi3.10 mi22476-3068875-1568875-15622756(Top 80%)9002(Top 74%)9002(Top 906%)
15K9.32 mi3.11 mi22443+338830+458830+4522459(Top 79%)8808(Top 72%)8808(Top 886%)
20K12.43 mi3.11 mi22580-1378898-688898-6822838(Top 80%)9056(Top 74%)9056(Top 911%)
Half13.11 mi0.68 mi22747-1678981-838981-8324771(Top 87%)10138(Top 83%)10138(Top 1020%)
25K15.53 mi2.42 mi23185-4389235-2549235-25424670(Top 87%)10111(Top 83%)10111(Top 1017%)
30K18.64 mi3.11 mi23315-1309357-1229357-12223868(Top 84%)9798(Top 80%)9798(Top 986%)
20M20.00 mi1.36 mi23457-1429450-939450-9324826(Top 87%)10373(Top 85%)10373(Top 1044%)
21M21.00 mi1.00 mi23558-1019530-809530-8024517(Top 86%)10298(Top 84%)10298(Top 1036%)
35K21.75 mi0.75 mi23340+2189422+1089422+10815734(Top 55%)5652(Top 46%)5652(Top 569%)
23M23.00 mi1.25 mi23048+2929288+1349288+13416664(Top 59%)6265(Top 51%)6265(Top 630%)
24M24.00 mi1.00 mi22982+669280+89280+821766(Top 77%)9015(Top 74%)9015(Top 907%)
40K24.85 mi0.85 mi22802+1809197+839197+8318219(Top 64%)7243(Top 59%)7243(Top 729%)
25.2M25.20 mi0.35 mi22716+869154+439154+4316257(Top 57%)6242(Top 51%)6242(Top 628%)
Finish26.22 mi1.02 mi22568+1489096+589096+5816810(Top 59%)6471(Top 53%)6471(Top 651%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22459

Females

8808

F55-59

8808

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22756

Females

9002

F55-59

9002

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22459

Females

8808

F55-59

8808

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22838

Females

9056

F55-59

9056

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24771

Females

10138

F55-59

10138

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24670

Females

10111

F55-59

10111

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23868

Females

9798

F55-59

9798

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24826

Females

10373

F55-59

10373

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24517

Females

10298

F55-59

10298

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15734

Females

5652

F55-59

5652

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16664

Females

6265

F55-59

6265

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21766

Females

9015

F55-59

9015

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18219

Females

7243

F55-59

7243

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16257

Females

6242

F55-59

6242

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

16810

Females

6471

F55-59

6471

Passing Analysis

Category:
Athletes Passed
1726
Passed By
2124
Net Change
-398
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22170
5K → 10K134440-306#22170#22476
10K → 15K195162+33#22476#22443
15K → 20K126263-137#22443#22580
20K → Half8175-167#22580#22747
Half → 25K37475-438#22747#23185
25K → 30K121251-130#23185#23315
30K → 20M38180-142#23315#23457
20M → 21M47148-101#23457#23558
21M → 35K2180+218#23558#23340
35K → 23M2931+292#23340#23048
23M → 24M8923+66#23048#22982
24M → 40K1855+180#22982#22802
40K → 25.2M860+86#22802#22716
25.2M → Finish1491+148#22716#22568
TOTALS17262124-398
📊

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