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BOSTON MARATHON 2023

Mary Shen

Bib: 23624•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
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
9:17/mi
28:52
↑ 97↓ 3451.5%
10K· 6.21 mi
9:25/mi
58:06
↑ 79↓ 1380.4%
15K· 9.32 mi
9:25/mi
1:27:21
↑ 67↓ 78
20K· 12.43 mi
10:07/mi
1:58:48
↑ 106↓ 860.1%
Half· 13.11 mi
9:14/mi
2:05:06
↑ 19↓ 370.5%
25K· 15.53 mi
9:27/mi
2:28:00
↑ 66↓ 880.2%
30K· 18.64 mi
10:16/mi
2:59:54
↑ 181↓ 1480.2%
20M
9:52/mi
3:13:19
↑ 64↓ 500.2%
21M
10:34/mi
3:23:53
↑ 106↓ 241.6%
35K· 21.75 mi
9:48/mi
3:31:13
↑ 17↓ 861.7%
23M
9:45/mi
3:43:25
↑ 23↓ 630.6%
24M
9:26/mi
3:52:51
↓ 821.3%
40K· 24.85 mi
9:58/mi
4:01:22
↓ 200.3%
25.2M
10:35/mi
4:05:01
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
4:14:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:06
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:09:20
Pace9:52 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2228:529:1728:52
9:17
-
10K
6.21 mi11:53:3658:069:2129:14
9:25
+0:08
15K
9.32 mi12:22:511:27:219:2229:15
9:25
0:00
20K
12.43 mi12:54:181:58:489:3431:27
10:07
+0:42
Half
13.11 mi13:00:362:05:069:336:18
9:14
-0:53
25K
15.53 mi13:23:302:28:009:3222:54
9:27
+0:13
30K
18.64 mi13:55:242:59:549:3931:54
10:16
+0:49
20M
20.00 mi14:08:493:13:199:4013:25
9:52
-0:24
21M
21.00 mi14:19:233:23:539:4310:34
10:34
+0:42
35K
21.75 mi14:26:433:31:139:437:20
9:48
-0:46
23M
23.00 mi14:38:553:43:259:4312:12
9:45
-0:03
24M
24.00 mi14:48:213:52:519:429:26
9:26
-0:19
40K
24.85 mi14:56:524:01:229:438:31
9:58
+0:32
25.2M
25.20 mi15:00:314:05:019:433:39
10:35
+0:37
Finish
26.22 mi15:09:564:14:269:439:25
9:14
-1:21

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

9:14 /mi

Average Pace

9:43 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28:19

82% of race

Time at Steady Pace

46:07

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:42 /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 mi11:24:2228:529:1728:52
9:17
#21511
10K
6.21 mi11:53:3658:069:2129:14
9:25
#21887
15K
9.32 mi12:22:511:27:219:2229:15
9:25
#21902
20K
12.43 mi12:54:181:58:489:3431:27
10:07
#22284
Half
13.11 mi13:00:362:05:069:336:18
9:14
#22226
25K
15.53 mi13:23:302:28:009:3222:54
9:27
#21969
30K
18.64 mi13:55:242:59:549:3931:54
10:16
#21924
20M
20.00 mi14:08:493:13:199:4013:25
9:52
#21776
21M
21.00 mi14:19:233:23:539:4310:34
10:34
#21681
35K
21.75 mi14:26:433:31:139:437:20
9:48
#21641
23M
23.00 mi14:38:553:43:259:4312:12
9:45
#21494
24M
24.00 mi14:48:213:52:519:429:26
9:26
#21378
40K
24.85 mi14:56:524:01:229:438:31
9:58
#21316
25.2M
25.20 mi15:00:314:05:019:433:39
10:35
#21275
Finish
26.22 mi15:09:564:14:269:439:25
9:14
#21203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi215118639863922005(Top 83%)8790(Top 77%)8790(Top 1668%)
10K6.21 mi3.10 mi21887-3768785-1468785-14622236(Top 84%)8942(Top 78%)8942(Top 1697%)
15K9.32 mi3.11 mi21902-158784+18784+122005(Top 83%)8790(Top 77%)8790(Top 1668%)
20K12.43 mi3.11 mi22284-3828975-1918975-19123149(Top 87%)9427(Top 83%)9427(Top 1789%)
Half13.11 mi0.68 mi22226+588950+258950+2521297(Top 80%)8408(Top 74%)8408(Top 1595%)
25K15.53 mi2.42 mi21969+2578809+1418809+14120670(Top 78%)8088(Top 71%)8088(Top 1535%)
30K18.64 mi3.11 mi21924+458798+118798+1121713(Top 82%)8746(Top 77%)8746(Top 1660%)
20M20.00 mi1.36 mi21776+1488720+788720+7820118(Top 76%)7934(Top 69%)7934(Top 1506%)
21M21.00 mi1.00 mi21681+958676+448676+4419818(Top 74%)7832(Top 69%)7832(Top 1486%)
35K21.75 mi0.75 mi21641+408667+98667+920788(Top 78%)8388(Top 73%)8388(Top 1592%)
23M23.00 mi1.25 mi21494+1478597+708597+7019255(Top 72%)7563(Top 66%)7563(Top 1435%)
24M24.00 mi1.00 mi21378+1168546+518546+5119001(Top 71%)7453(Top 65%)7453(Top 1414%)
40K24.85 mi0.85 mi21316+628523+238523+2319878(Top 75%)7995(Top 70%)7995(Top 1517%)
25.2M25.20 mi0.35 mi21275+418504+198504+1919413(Top 73%)7747(Top 68%)7747(Top 1470%)
Finish26.22 mi1.02 mi21203+728476+288476+2819146(Top 72%)7523(Top 66%)7523(Top 1428%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22005

Females

8790

F60-64

8790

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

22236

Females

8942

F60-64

8942

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22005

Females

8790

F60-64

8790

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23149

Females

9427

F60-64

9427

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21297

Females

8408

F60-64

8408

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

20670

Females

8088

F60-64

8088

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21713

Females

8746

F60-64

8746

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20118

Females

7934

F60-64

7934

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19818

Females

7832

F60-64

7832

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

20788

Females

8388

F60-64

8388

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19255

Females

7563

F60-64

7563

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

19001

Females

7453

F60-64

7453

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19878

Females

7995

F60-64

7995

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19413

Females

7747

F60-64

7747

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19146

Females

7523

F60-64

7523

Passing Analysis

Category:
Athletes Passed
1619
Passed By
1311
Net Change
+308
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21511
5K → 10K126502-376#21511#21887
10K → 15K165180-15#21887#21902
15K → 20K42424-382#21902#22284
20K → Half602+58#22284#22226
Half → 25K26710+257#22226#21969
25K → 30K159114+45#21969#21924
30K → 20M1579+148#21924#21776
20M → 21M10712+95#21776#21681
21M → 35K5919+40#21681#21641
35K → 23M1569+147#21641#21494
23M → 24M1215+116#21494#21378
24M → 40K7412+62#21378#21316
40K → 25.2M465+41#21316#21275
25.2M → Finish808+72#21275#21203
TOTALS16191311+308
📊

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