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BOSTON MARATHON 2023

Fangdi Yu

Bib: 29165•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:53/mi
27:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
53:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:19:54
↑ 67↓ 78
20K· 12.43 mi
8:25/mi
1:46:04
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:51:46
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:13:40
↑ 66↓ 880.2%
30K· 18.64 mi
9:15/mi
2:42:24
↑ 181↓ 1480.2%
20M
9:20/mi
2:55:05
↑ 64↓ 500.2%
21M
9:54/mi
3:04:59
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
3:11:39
↑ 17↓ 861.7%
23M
9:27/mi
3:23:29
↑ 23↓ 630.6%
24M
9:10/mi
3:32:39
↓ 821.3%
40K· 24.85 mi
9:21/mi
3:40:39
↓ 200.3%
25.2M
10:15/mi
3:44:11
↑ 13↓ 160.2%
Finish· 26.22 mi
9:23/mi
3:53:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:46
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time2:01:59
Pace9:18 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:2527:378:5327:37
8:53
-
10K
6.21 mi12:11:1353:258:3625:48
8:18
-0:35
15K
9.32 mi12:37:421:19:548:3426:29
8:31
+0:13
20K
12.43 mi13:03:521:46:048:3226:10
8:25
-0:06
Half
13.11 mi13:09:341:51:468:325:42
8:21
-0:04
25K
15.53 mi13:31:282:13:408:3621:54
9:02
+0:41
30K
18.64 mi14:00:122:42:248:4328:44
9:15
+0:13
20M
20.00 mi14:12:532:55:058:4512:41
9:20
+0:05
21M
21.00 mi14:22:473:04:598:499:54
9:54
+0:34
35K
21.75 mi14:29:273:11:398:496:40
8:55
-0:59
23M
23.00 mi14:41:173:23:298:5111:50
9:27
+0:32
24M
24.00 mi14:50:273:32:398:529:10
9:10
-0:17
40K
24.85 mi14:58:273:40:398:538:00
9:21
+0:11
25.2M
25.20 mi15:01:593:44:118:543:32
10:15
+0:54
Finish
26.22 mi15:11:333:53:458:559:34
9:23
-0:52

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

8:18 /mi

Average Pace

8:55 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:46

48% of race

Time at Steady Pace

1:36:43

41% of race

Time at Slower Pace

25:16

11% of race

Average Pace: 8:55 /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 mi11:45:2527:378:5327:37
8:53
#19936
10K
6.21 mi12:11:1353:258:3625:48
8:18
#18520
15K
9.32 mi12:37:421:19:548:3426:29
8:31
#18316
20K
12.43 mi13:03:521:46:048:3226:10
8:25
#17793
Half
13.11 mi13:09:341:51:468:325:42
8:21
#17716
25K
15.53 mi13:31:282:13:408:3621:54
9:02
#17984
30K
18.64 mi14:00:122:42:248:4328:44
9:15
#18057
20M
20.00 mi14:12:532:55:058:4512:41
9:20
#18063
21M
21.00 mi14:22:473:04:598:499:54
9:54
#18015
35K
21.75 mi14:29:273:11:398:496:40
8:55
#18016
23M
23.00 mi14:41:173:23:298:5111:50
9:27
#18037
24M
24.00 mi14:50:273:32:398:529:10
9:10
#18036
40K
24.85 mi14:58:273:40:398:538:00
9:21
#18039
25.2M
25.20 mi15:01:593:44:118:543:32
10:15
#18051
Finish
26.22 mi15:11:333:53:458:559:34
9:23
#18134
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi199367769776917990(Top 68%)6488(Top 57%)6488(Top 538%)
10K6.21 mi3.10 mi18520+14166841+9286841+92816972(Top 64%)5862(Top 51%)5862(Top 486%)
15K9.32 mi3.11 mi18316+2046701+1406701+14017990(Top 68%)6488(Top 57%)6488(Top 538%)
20K12.43 mi3.11 mi17793+5236400+3016400+30116392(Top 62%)5587(Top 49%)5587(Top 463%)
Half13.11 mi0.68 mi17716+776353+476353+4716923(Top 64%)5869(Top 51%)5869(Top 486%)
25K15.53 mi2.42 mi17984-2686528-1756528-17519135(Top 72%)7205(Top 63%)7205(Top 597%)
30K18.64 mi3.11 mi18057-736603-756603-7518403(Top 69%)6865(Top 60%)6865(Top 569%)
20M20.00 mi1.36 mi18063-66626-236626-2318171(Top 68%)6834(Top 60%)6834(Top 566%)
21M21.00 mi1.00 mi18015+486600+266600+2617667(Top 66%)6566(Top 57%)6566(Top 544%)
35K21.75 mi0.75 mi18016-16608-86608-817533(Top 66%)6575(Top 58%)6575(Top 545%)
23M23.00 mi1.25 mi18037-216629-216629-2118147(Top 68%)6948(Top 61%)6948(Top 576%)
24M24.00 mi1.00 mi18036+16651-226651-2217951(Top 67%)6875(Top 60%)6875(Top 570%)
40K24.85 mi0.85 mi18039-36664-136664-1317798(Top 67%)6839(Top 60%)6839(Top 567%)
25.2M25.20 mi0.35 mi18051-126675-116675-1118310(Top 69%)7119(Top 62%)7119(Top 590%)
Finish26.22 mi1.02 mi18134-836730-556730-5519719(Top 74%)7843(Top 69%)7843(Top 650%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

17990

Females

6488

F50-54

6488

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16972

Females

5862

F50-54

5862

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

17990

Females

6488

F50-54

6488

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16392

Females

5587

F50-54

5587

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

16923

Females

5869

F50-54

5869

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19135

Females

7205

F50-54

7205

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18403

Females

6865

F50-54

6865

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

18171

Females

6834

F50-54

6834

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17667

Females

6566

F50-54

6566

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

17533

Females

6575

F50-54

6575

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

18147

Females

6948

F50-54

6948

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

17951

Females

6875

F50-54

6875

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17798

Females

6839

F50-54

6839

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18310

Females

7119

F50-54

7119

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19719

Females

7843

F50-54

7843

Passing Analysis

Category:
Athletes Passed
3080
Passed By
1278
Net Change
+1802
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19936
5K → 10K145842+1416#19936#18520
10K → 15K29591+204#18520#18316
15K → 20K53714+523#18316#17793
20K → Half858+77#17793#17716
Half → 25K58326-268#17716#17984
25K → 30K165238-73#17984#18057
30K → 20M8894-6#18057#18063
20M → 21M11769+48#18063#18015
21M → 35K5152-1#18015#18016
35K → 23M6687-21#18016#18037
23M → 24M6059+1#18037#18036
24M → 40K4851-3#18036#18039
40K → 25.2M2032-12#18039#18051
25.2M → Finish32115-83#18051#18134
TOTALS30801278+1802
📊

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