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BOSTON MARATHON 2025

Shi Ho Ng

Bib: 23656•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 47%
Division (F50-54)
#0 / 1303
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:45
Rank: #20521
Start → 5K
26:45 | 8:37/mi
10K· 6.21 mi
53:16
Rank: #20257 (+264)
5K → 10K
26:31 | 8:32/mi
15K· 9.32 mi
1:19:52
Rank: #20076 (+181)
10K → 15K
26:36 | 8:34/mi
20K· 12.43 mi
1:47:08
Rank: #19982 (+94)
15K → 20K
27:16 | 8:47/mi
Half· 13.11 mi
1:53:06
Rank: #20000 (-18)
20K → Half
5:58 | 8:45/mi
25K· 15.53 mi
2:14:42
Rank: #19894 (+106)
Half → 25K
21:36 | 8:55/mi
30K· 18.64 mi
2:44:00
Rank: #19850 (+44)
25K → 30K
29:18 | 9:26/mi
20M
2:56:45
Rank: #19755 (+95)
30K → 20M
12:45 | 9:23/mi
21M
3:06:19
Rank: #19560 (+195)
20M → 21M
9:34 | 9:34/mi
35K· 21.75 mi
3:12:38
Rank: #19405 (+155)
21M → 35K
6:19 | 8:27/mi
23M
3:23:11
Rank: #19072 (+333)
35K → 23M
10:33 | 8:26/mi
24M
3:31:53
Rank: #18927 (+145)
23M → 24M
8:42 | 8:42/mi
40K· 24.85 mi
3:39:28
Rank: #18792 (+135)
24M → 40K
7:35 | 8:52/mi
25.2M
3:42:34
Rank: #18680 (+112)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:50:30
Rank: #18433 (+247)
25.2M → Finish
7:56 | 7:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:06
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time1:57:24
Pace8:57 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4926:458:3726:45
8:37
-
10K
6.21 mi11:51:2053:168:3426:31
8:32
-0:05
15K
9.32 mi12:17:561:19:528:3426:36
8:34
+0:02
20K
12.43 mi12:45:121:47:088:3727:16
8:47
+0:13
Half
13.11 mi12:51:101:53:068:385:58
8:45
-0:02
25K
15.53 mi13:12:462:14:428:4021:36
8:55
+0:10
30K
18.64 mi13:42:042:44:008:4829:18
9:26
+0:31
20M
20.00 mi13:54:492:56:458:5012:45
9:23
-0:03
21M
21.00 mi14:04:233:06:198:529:34
9:34
+0:11
35K
21.75 mi14:10:423:12:388:516:19
8:27
-1:07
23M
23.00 mi14:21:153:23:118:5010:33
8:26
-0:01
24M
24.00 mi14:29:573:31:538:508:42
8:42
+0:16
40K
24.85 mi14:37:323:39:288:507:35
8:52
+0:10
25.2M
25.20 mi14:40:383:42:348:503:06
8:59
+0:07
Finish
26.22 mi14:48:343:50:308:487:56
7:47
-1:12

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

7:47 /mi

Average Pace

8:48 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:48

11% of race

Time at Steady Pace

2:30:59

66% of race

Time at Slower Pace

54:43

24% of race

Average Pace: 8:47 /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 mi11:24:4926:458:3726:45
8:37
#20521
10K
6.21 mi11:51:2053:168:3426:31
8:32
#20257
15K
9.32 mi12:17:561:19:528:3426:36
8:34
#20076
20K
12.43 mi12:45:121:47:088:3727:16
8:47
#19982
Half
13.11 mi12:51:101:53:068:385:58
8:45
#20000
25K
15.53 mi13:12:462:14:428:4021:36
8:55
#19894
30K
18.64 mi13:42:042:44:008:4829:18
9:26
#19850
20M
20.00 mi13:54:492:56:458:5012:45
9:23
#19755
21M
21.00 mi14:04:233:06:198:529:34
9:34
#19560
35K
21.75 mi14:10:423:12:388:516:19
8:27
#19405
23M
23.00 mi14:21:153:23:118:5010:33
8:26
#19072
24M
24.00 mi14:29:573:31:538:508:42
8:42
#18927
40K
24.85 mi14:37:323:39:288:507:35
8:52
#18792
25.2M
25.20 mi14:40:383:42:348:503:06
8:59
#18680
Finish
26.22 mi14:48:343:50:308:487:56
7:47
#18433
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi205217816781619707(Top 69%)7277(Top 60%)7277(Top 558%)
10K6.21 mi3.10 mi20257+2647627+1897627+18920007(Top 70%)7467(Top 61%)7467(Top 573%)
15K9.32 mi3.11 mi20076+1817512+1157512+11519707(Top 69%)7277(Top 60%)7277(Top 558%)
20K12.43 mi3.11 mi19982+947462+507462+5019824(Top 70%)7386(Top 60%)7386(Top 567%)
Half13.11 mi0.68 mi20000-187476-147476-1420641(Top 73%)7826(Top 64%)7826(Top 601%)
25K15.53 mi2.42 mi19894+1067420+567420+5619475(Top 69%)7241(Top 59%)7241(Top 556%)
30K18.64 mi3.11 mi19850+447432-127432-1219667(Top 69%)7479(Top 61%)7479(Top 574%)
20M20.00 mi1.36 mi19755+957406+267406+2618683(Top 66%)7094(Top 58%)7094(Top 544%)
21M21.00 mi1.00 mi19560+1957322+847322+8416406(Top 58%)5936(Top 49%)5936(Top 456%)
35K21.75 mi0.75 mi19405+1557249+737249+7315187(Top 53%)5349(Top 44%)5349(Top 411%)
23M23.00 mi1.25 mi19072+3337086+1637086+16312882(Top 45%)4214(Top 34%)4214(Top 323%)
24M24.00 mi1.00 mi18927+1457033+537033+5315792(Top 56%)5810(Top 48%)5810(Top 446%)
40K24.85 mi0.85 mi18792+1356987+466987+4615623(Top 55%)5869(Top 48%)5869(Top 450%)
25.2M25.20 mi0.35 mi18680+1126936+516936+5111871(Top 42%)3947(Top 32%)3947(Top 303%)
Finish26.22 mi1.02 mi18433+2476822+1146822+11411385(Top 40%)3671(Top 30%)3671(Top 282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19707

Females

7277

F50-54

7277

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

20007

Females

7467

F50-54

7467

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19707

Females

7277

F50-54

7277

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19824

Females

7386

F50-54

7386

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20641

Females

7826

F50-54

7826

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19475

Females

7241

F50-54

7241

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19667

Females

7479

F50-54

7479

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18683

Females

7094

F50-54

7094

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16406

Females

5936

F50-54

5936

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15187

Females

5349

F50-54

5349

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12882

Females

4214

F50-54

4214

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15792

Females

5810

F50-54

5810

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15623

Females

5869

F50-54

5869

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11871

Females

3947

F50-54

3947

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

11385

Females

3671

F50-54

3671

Passing Analysis

Category:
Athletes Passed
2941
Passed By
853
Net Change
+2088
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20521
5K → 10K448184+264#20521#20257
10K → 15K27190+181#20257#20076
15K → 20K231137+94#20076#19982
20K → Half2240-18#19982#20000
Half → 25K207101+106#20000#19894
25K → 30K241197+44#19894#19850
30K → 20M14449+95#19850#19755
20M → 21M22227+195#19755#19560
21M → 35K1583+155#19560#19405
35K → 23M3330+333#19405#19072
23M → 24M1538+145#19072#18927
24M → 40K14712+135#18927#18792
40K → 25.2M1120+112#18792#18680
25.2M → Finish2525+247#18680#18433
TOTALS2941853+2088
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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