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BOSTON MARATHON 2023

Ngon Sin Fan

Bib: 17847•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 37%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #13743
Start → 5K
24:44 | 7:58/mi
10K· 6.21 mi
48:59
Rank: #13451 (+292)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:13:36
Rank: #13551 (-100)
10K → 15K
24:37 | 7:55/mi
20K· 12.43 mi
1:38:24
Rank: #13459 (+92)
15K → 20K
24:48 | 7:59/mi
Half· 13.11 mi
1:43:50
Rank: #13484 (-25)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:03:33
Rank: #13496 (-12)
Half → 25K
19:43 | 8:08/mi
30K· 18.64 mi
2:29:48
Rank: #13566 (-70)
25K → 30K
26:15 | 8:27/mi
20M
2:41:26
Rank: #13607 (-41)
30K → 20M
11:38 | 8:34/mi
21M
2:50:36
Rank: #13641 (-34)
20M → 21M
9:10 | 9:10/mi
35K· 21.75 mi
2:56:49
Rank: #13652 (-11)
21M → 35K
6:13 | 8:19/mi
23M
3:07:41
Rank: #13669 (-17)
35K → 23M
10:52 | 8:41/mi
24M
3:16:17
Rank: #13730 (-61)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:23:36
Rank: #13705 (+25)
24M → 40K
7:19 | 8:33/mi
25.2M
3:26:52
Rank: #13733 (-28)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:35:50
Rank: #13863 (-130)
25.2M → Finish
8:58 | 8:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:50
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:52:00
Pace8:33 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3724:447:5824:44
7:58
-
10K
6.21 mi11:39:5248:597:5324:15
7:48
-0:10
15K
9.32 mi12:04:291:13:367:5424:37
7:55
+0:07
20K
12.43 mi12:29:171:38:247:5524:48
7:59
+0:04
Half
13.11 mi12:34:431:43:507:555:26
7:58
-0:01
25K
15.53 mi12:54:262:03:337:5719:43
8:08
+0:10
30K
18.64 mi13:20:412:29:488:0226:15
8:27
+0:19
20M
20.00 mi13:32:192:41:268:0411:38
8:34
+0:07
21M
21.00 mi13:41:292:50:368:079:10
9:10
+0:36
35K
21.75 mi13:47:422:56:498:086:13
8:19
-0:51
23M
23.00 mi13:58:343:07:418:1010:52
8:41
+0:22
24M
24.00 mi14:07:103:16:178:118:36
8:36
-0:05
40K
24.85 mi14:14:293:23:368:117:19
8:33
-0:03
25.2M
25.20 mi14:17:453:26:528:133:16
9:28
+0:55
Finish
26.22 mi14:26:433:35:508:148:58
8:48
-0:40

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

7:48 /mi

Average Pace

8:14 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:33

57% of race

Time at Steady Pace

1:10:53

33% of race

Time at Slower Pace

21:24

10% of race

Average Pace: 8:14 /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 mi11:15:3724:447:5824:44
7:58
#13743
10K
6.21 mi11:39:5248:597:5324:15
7:48
#13451
15K
9.32 mi12:04:291:13:367:5424:37
7:55
#13551
20K
12.43 mi12:29:171:38:247:5524:48
7:59
#13459
Half
13.11 mi12:34:431:43:507:555:26
7:58
#13484
25K
15.53 mi12:54:262:03:337:5719:43
8:08
#13496
30K
18.64 mi13:20:412:29:488:0226:15
8:27
#13566
20M
20.00 mi13:32:192:41:268:0411:38
8:34
#13607
21M
21.00 mi13:41:292:50:368:079:10
9:10
#13641
35K
21.75 mi13:47:422:56:498:086:13
8:19
#13652
23M
23.00 mi13:58:343:07:418:1010:52
8:41
#13669
24M
24.00 mi14:07:103:16:178:118:36
8:36
#13730
40K
24.85 mi14:14:293:23:368:117:19
8:33
#13705
25.2M
25.20 mi14:17:453:26:528:133:16
9:28
#13733
Finish
26.22 mi14:26:433:35:508:148:58
8:48
#13863
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi137433870387013784(Top 52%)3957(Top 35%)3957(Top 81%)
10K6.21 mi3.10 mi13451+2923705+1653705+16513190(Top 50%)3545(Top 31%)3545(Top 73%)
15K9.32 mi3.11 mi13551-1003786-813786-8113784(Top 52%)3957(Top 35%)3957(Top 81%)
20K12.43 mi3.11 mi13459+923757+293757+2913289(Top 50%)3703(Top 32%)3703(Top 76%)
Half13.11 mi0.68 mi13484-253775-183775-1814130(Top 53%)4161(Top 36%)4161(Top 85%)
25K15.53 mi2.42 mi13496-123805-303805-3013755(Top 52%)4071(Top 36%)4071(Top 83%)
30K18.64 mi3.11 mi13566-703881-763881-7613991(Top 53%)4327(Top 38%)4327(Top 89%)
20M20.00 mi1.36 mi13607-413924-433924-4314013(Top 53%)4413(Top 39%)4413(Top 90%)
21M21.00 mi1.00 mi13641-343957-333957-3314316(Top 54%)4664(Top 41%)4664(Top 95%)
35K21.75 mi0.75 mi13652-113978-213978-2114168(Top 53%)4648(Top 41%)4648(Top 95%)
23M23.00 mi1.25 mi13669-174021-434021-4314261(Top 54%)4761(Top 42%)4761(Top 97%)
24M24.00 mi1.00 mi13730-614086-654086-6515065(Top 57%)5260(Top 46%)5260(Top 108%)
40K24.85 mi0.85 mi13705+254088-24088-213722(Top 52%)4589(Top 40%)4589(Top 94%)
25.2M25.20 mi0.35 mi13733-284111-234111-2315085(Top 57%)5339(Top 47%)5339(Top 109%)
Finish26.22 mi1.02 mi13863-1304209-984209-9817040(Top 64%)6392(Top 56%)6392(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13784

Females

3957

F18-39

3957

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

13190

Females

3545

F18-39

3545

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13784

Females

3957

F18-39

3957

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13289

Females

3703

F18-39

3703

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

14130

Females

4161

F18-39

4161

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13755

Females

4071

F18-39

4071

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

13991

Females

4327

F18-39

4327

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

14013

Females

4413

F18-39

4413

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14316

Females

4664

F18-39

4664

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14168

Females

4648

F18-39

4648

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

14261

Females

4761

F18-39

4761

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15065

Females

5260

F18-39

5260

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13722

Females

4589

F18-39

4589

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15085

Females

5339

F18-39

5339

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

17040

Females

6392

F18-39

6392

Passing Analysis

Category:
Athletes Passed
1652
Passed By
1772
Net Change
-120
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13743
5K → 10K470178+292#13743#13451
10K → 15K157257-100#13451#13551
15K → 20K231139+92#13551#13459
20K → Half1944-25#13459#13484
Half → 25K139151-12#13484#13496
25K → 30K166236-70#13496#13566
30K → 20M83124-41#13566#13607
20M → 21M82116-34#13607#13641
21M → 35K4657-11#13641#13652
35K → 23M7996-17#13652#13669
23M → 24M52113-61#13669#13730
24M → 40K6843+25#13730#13705
40K → 25.2M2856-28#13705#13733
25.2M → Finish32162-130#13733#13863
TOTALS16521772-120
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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