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BOSTON MARATHON 2023

Anne Chang

Bib: 14326•F

AB

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
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
9:11/mi
28:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
55:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:32/mi
1:21:37
↑ 67↓ 78
20K· 12.43 mi
8:28/mi
1:47:56
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:53:45
↑ 19↓ 370.5%
25K· 15.53 mi
8:32/mi
2:14:26
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:42:33
↑ 181↓ 1480.2%
20M
8:47/mi
2:54:29
↑ 64↓ 500.2%
21M
9:31/mi
3:04:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
3:10:19
↑ 17↓ 861.7%
23M
9:07/mi
3:21:44
↑ 23↓ 630.6%
24M
8:34/mi
3:30:18
↓ 821.3%
40K· 24.85 mi
8:40/mi
3:37:43
↓ 200.3%
25.2M
9:43/mi
3:41:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:49:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:45
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time1:55:59
Pace8:51 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:1828:329:1128:32
9:11
-
10K
6.21 mi11:25:5255:068:5226:34
8:33
-0:38
15K
9.32 mi11:52:231:21:378:4526:31
8:32
-0:01
20K
12.43 mi12:18:421:47:568:4126:19
8:28
-0:04
Half
13.11 mi12:24:311:53:458:415:49
8:32
+0:04
25K
15.53 mi12:45:122:14:268:3920:41
8:32
0:00
30K
18.64 mi13:13:192:42:338:4328:07
9:03
+0:31
20M
20.00 mi13:25:152:54:298:4311:56
8:47
-0:16
21M
21.00 mi13:34:463:04:008:469:31
9:31
+0:44
35K
21.75 mi13:41:053:10:198:456:19
8:27
-1:04
23M
23.00 mi13:52:303:21:448:4611:25
9:07
+0:40
24M
24.00 mi14:01:043:30:188:468:34
8:34
-0:33
40K
24.85 mi14:08:293:37:438:467:25
8:40
+0:06
25.2M
25.20 mi14:11:503:41:048:463:21
9:43
+1:03
Finish
26.22 mi14:20:303:49:448:468:40
8:30
-1:13

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

8:27 /mi

Average Pace

8:46 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:36:52

94% of race

Time at Steady Pace

12:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi10:59:1828:329:1128:32
9:11
#21169
10K
6.21 mi11:25:5255:068:5226:34
8:33
#20028
15K
9.32 mi11:52:231:21:378:4526:31
8:32
#19375
20K
12.43 mi12:18:421:47:568:4126:19
8:28
#18721
Half
13.11 mi12:24:311:53:458:415:49
8:32
#18682
25K
15.53 mi12:45:122:14:268:3920:41
8:32
#18293
30K
18.64 mi13:13:192:42:338:4328:07
9:03
#18110
20M
20.00 mi13:25:152:54:298:4311:56
8:47
#17867
21M
21.00 mi13:34:463:04:008:469:31
9:31
#17750
35K
21.75 mi13:41:053:10:198:456:19
8:27
#17647
23M
23.00 mi13:52:303:21:448:4611:25
9:07
#17586
24M
24.00 mi14:01:043:30:188:468:34
8:34
#17468
40K
24.85 mi14:08:293:37:438:467:25
8:40
#17353
25.2M
25.20 mi14:11:503:41:048:463:21
9:43
#17335
Finish
26.22 mi14:20:303:49:448:468:40
8:30
#17288
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi211698456845618051(Top 68%)6531(Top 57%)6531(Top 359%)
10K6.21 mi3.10 mi20028+11417781+6757781+67518574(Top 70%)6814(Top 60%)6814(Top 375%)
15K9.32 mi3.11 mi19375+6537372+4097372+40918051(Top 68%)6531(Top 57%)6531(Top 359%)
20K12.43 mi3.11 mi18721+6546947+4256947+42516684(Top 63%)5749(Top 50%)5749(Top 316%)
Half13.11 mi0.68 mi18682+396924+236924+2317878(Top 67%)6407(Top 56%)6407(Top 353%)
25K15.53 mi2.42 mi18293+3896703+2216703+22116404(Top 62%)5672(Top 50%)5672(Top 312%)
30K18.64 mi3.11 mi18110+1836635+686635+6817442(Top 66%)6321(Top 55%)6321(Top 348%)
20M20.00 mi1.36 mi17867+2436502+1336502+13315351(Top 58%)5200(Top 46%)5200(Top 286%)
21M21.00 mi1.00 mi17750+1176440+626440+6216064(Top 60%)5671(Top 50%)5671(Top 312%)
35K21.75 mi0.75 mi17647+1036392+486392+4815037(Top 56%)5142(Top 45%)5142(Top 283%)
23M23.00 mi1.25 mi17586+616371+216371+2116645(Top 63%)6108(Top 53%)6108(Top 336%)
24M24.00 mi1.00 mi17468+1186303+686303+6814913(Top 56%)5190(Top 45%)5190(Top 286%)
40K24.85 mi0.85 mi17353+1156257+466257+4614410(Top 54%)4982(Top 44%)4982(Top 274%)
25.2M25.20 mi0.35 mi17335+186255+26255+216247(Top 61%)6014(Top 53%)6014(Top 331%)
Finish26.22 mi1.02 mi17288+476235+206235+2015486(Top 58%)5533(Top 48%)5533(Top 305%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

18051

Females

6531

F45-49

6531

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18574

Females

6814

F45-49

6814

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

18051

Females

6531

F45-49

6531

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16684

Females

5749

F45-49

5749

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17878

Females

6407

F45-49

6407

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16404

Females

5672

F45-49

5672

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17442

Females

6321

F45-49

6321

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15351

Females

5200

F45-49

5200

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

16064

Females

5671

F45-49

5671

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15037

Females

5142

F45-49

5142

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16645

Females

6108

F45-49

6108

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14913

Females

5190

F45-49

5190

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14410

Females

4982

F45-49

4982

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16247

Females

6014

F45-49

6014

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15486

Females

5533

F45-49

5533

Passing Analysis

Category:
Athletes Passed
4241
Passed By
360
Net Change
+3881
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21169
5K → 10K117938+1141#21169#20028
10K → 15K67421+653#20028#19375
15K → 20K6606+654#19375#18721
20K → Half4910+39#18721#18682
Half → 25K3989+389#18682#18293
25K → 30K284101+183#18293#18110
30K → 20M2485+243#18110#17867
20M → 21M14124+117#17867#17750
21M → 35K1118+103#17750#17647
35K → 23M10746+61#17647#17586
23M → 24M13820+118#17586#17468
24M → 40K1249+115#17468#17353
40K → 25.2M4325+18#17353#17335
25.2M → Finish8538+47#17335#17288
TOTALS4241360+3881
📊

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