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BOSTON MARATHON 2023

Fang Yi

Bib: 21833•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:13/mi
25:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
51:01
↑ 79↓ 1380.4%
15K· 9.32 mi
8:26/mi
1:17:12
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:44:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:50:03
↑ 19↓ 370.5%
25K· 15.53 mi
9:01/mi
2:11:54
↑ 66↓ 880.2%
30K· 18.64 mi
9:55/mi
2:42:42
↑ 181↓ 1480.2%
20M
10:23/mi
2:56:49
↑ 64↓ 500.2%
21M
11:16/mi
3:08:05
↑ 106↓ 241.6%
35K· 21.75 mi
9:23/mi
3:15:06
↑ 17↓ 861.7%
23M
10:29/mi
3:28:13
↑ 23↓ 630.6%
24M
9:57/mi
3:38:10
↓ 821.3%
40K· 24.85 mi
10:22/mi
3:47:02
↓ 200.3%
25.2M
11:21/mi
3:50:57
↑ 13↓ 160.2%
Finish· 26.22 mi
9:38/mi
4:00:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:03
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time2:10:43
Pace9:58 /mi
📊Positive Split: 18.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:1125:318:1325:31
8:13
-
10K
6.21 mi11:49:4151:018:1325:30
8:12
-0:01
15K
9.32 mi12:15:521:17:128:1726:11
8:26
+0:14
20K
12.43 mi12:42:541:44:148:2327:02
8:42
+0:16
Half
13.11 mi12:48:431:50:038:245:49
8:32
-0:10
25K
15.53 mi13:10:342:11:548:2921:51
9:01
+0:29
30K
18.64 mi13:41:222:42:428:4430:48
9:55
+0:54
20M
20.00 mi13:55:292:56:498:5014:07
10:23
+0:28
21M
21.00 mi14:06:453:08:058:5711:16
11:16
+0:53
35K
21.75 mi14:13:463:15:068:587:01
9:23
-1:53
23M
23.00 mi14:26:533:28:139:0313:07
10:29
+1:06
24M
24.00 mi14:36:503:38:109:059:57
9:57
-0:32
40K
24.85 mi14:45:423:47:029:088:52
10:22
+0:25
25.2M
25.20 mi14:49:373:50:579:103:55
11:21
+0:59
Finish
26.22 mi14:59:264:00:469:119:49
9:38
-1:43

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

8:12 /mi

Average Pace

9:11 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:54

55% of race

Time at Steady Pace

57:35

24% of race

Time at Slower Pace

51:17

21% of race

Average Pace: 9:11 /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 mi11:24:1125:318:1325:31
8:13
#15582
10K
6.21 mi11:49:4151:018:1325:30
8:12
#15901
15K
9.32 mi12:15:521:17:128:1726:11
8:26
#16394
20K
12.43 mi12:42:541:44:148:2327:02
8:42
#16843
Half
13.11 mi12:48:431:50:038:245:49
8:32
#16912
25K
15.53 mi13:10:342:11:548:2921:51
9:01
#17275
30K
18.64 mi13:41:222:42:428:4430:48
9:55
#18152
20M
20.00 mi13:55:292:56:498:5014:07
10:23
#18560
21M
21.00 mi14:06:453:08:058:5711:16
11:16
#18839
35K
21.75 mi14:13:463:15:068:587:01
9:23
#18879
23M
23.00 mi14:26:533:28:139:0313:07
10:29
#19097
24M
24.00 mi14:36:503:38:109:059:57
9:57
#19181
40K
24.85 mi14:45:423:47:029:088:52
10:22
#19292
25.2M
25.20 mi14:49:373:50:579:103:55
11:21
#19365
Finish
26.22 mi14:59:264:00:469:119:49
9:38
#19441
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi155825027502717333(Top 65%)6127(Top 54%)6127(Top 337%)
10K6.21 mi3.10 mi15901-3195225-1985225-19816328(Top 61%)5474(Top 48%)5474(Top 301%)
15K9.32 mi3.11 mi16394-4935526-3015526-30117333(Top 65%)6127(Top 54%)6127(Top 337%)
20K12.43 mi3.11 mi16843-4495830-3045830-30418142(Top 68%)6589(Top 58%)6589(Top 363%)
Half13.11 mi0.68 mi16912-695875-455875-4517920(Top 67%)6449(Top 56%)6449(Top 355%)
25K15.53 mi2.42 mi17275-3636103-2286103-22819031(Top 71%)7151(Top 63%)7151(Top 394%)
30K18.64 mi3.11 mi18152-8776663-5606663-56020781(Top 78%)8215(Top 72%)8215(Top 452%)
20M20.00 mi1.36 mi18560-4086905-2426905-24221505(Top 81%)8700(Top 76%)8700(Top 479%)
21M21.00 mi1.00 mi18839-2797075-1707075-17021409(Top 80%)8687(Top 76%)8687(Top 478%)
35K21.75 mi0.75 mi18879-407106-317106-3119469(Top 73%)7642(Top 67%)7642(Top 421%)
23M23.00 mi1.25 mi19097-2187239-1337239-13321261(Top 80%)8655(Top 76%)8655(Top 476%)
24M24.00 mi1.00 mi19181-847294-557294-5520658(Top 78%)8356(Top 73%)8356(Top 460%)
40K24.85 mi0.85 mi19292-1117364-707364-7020921(Top 79%)8552(Top 75%)8552(Top 471%)
25.2M25.20 mi0.35 mi19365-737407-437407-4321264(Top 80%)8727(Top 76%)8727(Top 480%)
Finish26.22 mi1.02 mi19441-767466-597466-5920591(Top 77%)8342(Top 73%)8342(Top 459%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17333

Females

6127

F45-49

6127

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16328

Females

5474

F45-49

5474

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17333

Females

6127

F45-49

6127

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18142

Females

6589

F45-49

6589

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17920

Females

6449

F45-49

6449

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

19031

Females

7151

F45-49

7151

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20781

Females

8215

F45-49

8215

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21505

Females

8700

F45-49

8700

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21409

Females

8687

F45-49

8687

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19469

Females

7642

F45-49

7642

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21261

Females

8655

F45-49

8655

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20658

Females

8356

F45-49

8356

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20921

Females

8552

F45-49

8552

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21264

Females

8727

F45-49

8727

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20591

Females

8342

F45-49

8342

Passing Analysis

Category:
Athletes Passed
602
Passed By
4461
Net Change
-3859
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15582
5K → 10K170489-319#15582#15901
10K → 15K61554-493#15901#16394
15K → 20K72521-449#16394#16843
20K → Half1079-69#16843#16912
Half → 25K54417-363#16912#17275
25K → 30K38915-877#17275#18152
30K → 20M16424-408#18152#18560
20M → 21M25304-279#18560#18839
21M → 35K3373-40#18839#18879
35K → 23M27245-218#18879#19097
23M → 24M36120-84#19097#19181
24M → 40K29140-111#19181#19292
40K → 25.2M679-73#19292#19365
25.2M → Finish25101-76#19365#19441
TOTALS6024461-3859
📊

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