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BOSTON MARATHON 2023

Michelle Day

Bib: 27076•F

MA

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
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
9:56/mi
30:53
↑ 97↓ 3451.5%
10K· 6.21 mi
10:19/mi
1:02:55
↑ 79↓ 1380.4%
15K· 9.32 mi
10:27/mi
1:35:23
↑ 67↓ 78
20K· 12.43 mi
10:45/mi
2:08:47
↑ 106↓ 860.1%
Half· 13.11 mi
13:23/mi
2:17:55
↑ 19↓ 370.5%
25K· 15.53 mi
11:29/mi
2:45:46
↑ 66↓ 880.2%
30K· 18.64 mi
12:03/mi
3:23:12
↑ 181↓ 1480.2%
20M
12:18/mi
3:39:55
↑ 64↓ 500.2%
21M
13:59/mi
3:53:54
↑ 106↓ 241.6%
35K· 21.75 mi
11:30/mi
4:02:30
↑ 17↓ 861.7%
23M
12:40/mi
4:18:22
↑ 23↓ 630.6%
24M
12:02/mi
4:30:24
↓ 821.3%
40K· 24.85 mi
12:41/mi
4:41:15
↓ 200.3%
25.2M
13:20/mi
4:45:51
↑ 13↓ 160.2%
Finish· 26.22 mi
11:30/mi
4:57:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:55
Pace10:31 /mi
2nd Half
Distance13.11 mi
Time2:39:39
Pace12:11 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:1730:539:5630:53
9:56
-
10K
6.21 mi12:19:191:02:5510:0832:02
10:19
+0:23
15K
9.32 mi12:51:471:35:2310:1432:28
10:27
+0:08
20K
12.43 mi13:25:112:08:4710:2233:24
10:45
+0:18
Half
13.11 mi13:34:192:17:5510:319:08
13:23
+2:38
25K
15.53 mi14:02:102:45:4610:4027:51
11:29
-1:54
30K
18.64 mi14:39:363:23:1210:5437:26
12:03
+0:34
20M
20.00 mi14:56:193:39:5511:0016:43
12:18
+0:15
21M
21.00 mi15:10:183:53:5411:0813:59
13:59
+1:41
35K
21.75 mi15:18:544:02:3011:098:36
11:30
-2:29
23M
23.00 mi15:34:464:18:2211:1415:52
12:40
+1:10
24M
24.00 mi15:46:484:30:2411:1612:02
12:02
-0:38
40K
24.85 mi15:57:394:41:1511:1910:51
12:41
+0:39
25.2M
25.20 mi16:02:154:45:5111:214:36
13:20
+0:39
Finish
26.22 mi16:13:584:57:3411:2111:43
11:30
-1:50

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

9:56 /mi

Average Pace

11:21 /mi

Slowest Pace

13:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:47

43% of race

Time at Steady Pace

1:54:21

38% of race

Time at Slower Pace

54:26

18% of race

Average Pace: 11:21 /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 mi11:47:1730:539:5630:53
9:56
#23314
10K
6.21 mi12:19:191:02:5510:0832:02
10:19
#23903
15K
9.32 mi12:51:471:35:2310:1432:28
10:27
#24089
20K
12.43 mi13:25:112:08:4710:2233:24
10:45
#24138
Half
13.11 mi13:34:192:17:5510:319:08
13:23
#24435
25K
15.53 mi14:02:102:45:4610:4027:51
11:29
#24503
30K
18.64 mi14:39:363:23:1210:5437:26
12:03
#24532
20M
20.00 mi14:56:193:39:5511:0016:43
12:18
#24530
21M
21.00 mi15:10:183:53:5411:0813:59
13:59
#24594
35K
21.75 mi15:18:544:02:3011:098:36
11:30
#24578
23M
23.00 mi15:34:464:18:2211:1415:52
12:40
#24602
24M
24.00 mi15:46:484:30:2411:1612:02
12:02
#24609
40K
24.85 mi15:57:394:41:1511:1910:51
12:41
#24633
25.2M
25.20 mi16:02:154:45:5111:214:36
13:20
#24634
Finish
26.22 mi16:13:584:57:3411:2111:43
11:30
#24666
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi233149557955724375(Top 92%)10105(Top 88%)10105(Top 837%)
10K6.21 mi3.10 mi23903-5899841-2849841-28424326(Top 91%)10075(Top 88%)10075(Top 835%)
15K9.32 mi3.11 mi24089-1869942-1019942-10124375(Top 92%)10105(Top 88%)10105(Top 837%)
20K12.43 mi3.11 mi24138-499970-289970-2824252(Top 91%)10064(Top 88%)10064(Top 834%)
Half13.11 mi0.68 mi24435-29710139-16910139-16926444(Top 99%)11332(Top 99%)11332(Top 939%)
25K15.53 mi2.42 mi24503-6810186-4710186-4724651(Top 93%)10313(Top 90%)10313(Top 854%)
30K18.64 mi3.11 mi24532-2910224-3810224-3824561(Top 92%)10314(Top 90%)10314(Top 855%)
20M20.00 mi1.36 mi24530+210225-110225-124547(Top 92%)10366(Top 91%)10366(Top 859%)
21M21.00 mi1.00 mi24594-6410264-3910264-3925028(Top 94%)10623(Top 93%)10623(Top 880%)
35K21.75 mi0.75 mi24578+1610265-110265-124110(Top 91%)10189(Top 89%)10189(Top 844%)
23M23.00 mi1.25 mi24602-2410289-2410289-2424771(Top 93%)10517(Top 92%)10517(Top 871%)
24M24.00 mi1.00 mi24609-710303-1410303-1424584(Top 92%)10480(Top 92%)10480(Top 868%)
40K24.85 mi0.85 mi24633-2410331-2810331-2824670(Top 93%)10506(Top 92%)10506(Top 870%)
25.2M25.20 mi0.35 mi24634-110330+110330+124379(Top 92%)10366(Top 91%)10366(Top 859%)
Finish26.22 mi1.02 mi24666-3210348-1810348-1824687(Top 93%)10500(Top 92%)10500(Top 870%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24375

Females

10105

F50-54

10105

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24326

Females

10075

F50-54

10075

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24375

Females

10105

F50-54

10105

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24252

Females

10064

F50-54

10064

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26444

Females

11332

F50-54

11332

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24651

Females

10313

F50-54

10313

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24561

Females

10314

F50-54

10314

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24547

Females

10366

F50-54

10366

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

25028

Females

10623

F50-54

10623

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

24110

Females

10189

F50-54

10189

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

24771

Females

10517

F50-54

10517

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

24584

Females

10480

F50-54

10480

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24670

Females

10506

F50-54

10506

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24379

Females

10366

F50-54

10366

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

24687

Females

10500

F50-54

10500

Passing Analysis

Category:
Athletes Passed
539
Passed By
1891
Net Change
-1352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23314
5K → 10K39628-589#23314#23903
10K → 15K59245-186#23903#24089
15K → 20K90139-49#24089#24138
20K → Half1298-297#24138#24435
Half → 25K54122-68#24435#24503
25K → 30K97126-29#24503#24532
30K → 20M4543+2#24532#24530
20M → 21M1983-64#24530#24594
21M → 35K3115+16#24594#24578
35K → 23M3862-24#24578#24602
23M → 24M2330-7#24602#24609
24M → 40K2044-24#24609#24633
40K → 25.2M910-1#24633#24634
25.2M → Finish1446-32#24634#24666
TOTALS5391891-1352
📊

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