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BOSTON MARATHON 2023

Michele Stack

Bib: 15796•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 39%
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
8:04/mi
25:04
↑ 97↓ 3451.5%
10K· 6.21 mi
8:22/mi
51:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:17:45
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:45:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
1:51:31
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:13:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:42:41
↑ 181↓ 1480.2%
20M
9:27/mi
2:55:31
↑ 64↓ 500.2%
21M
10:05/mi
3:05:36
↑ 106↓ 241.6%
35K· 21.75 mi
9:31/mi
3:12:43
↑ 17↓ 861.7%
23M
9:57/mi
3:25:10
↑ 23↓ 630.6%
24M
9:53/mi
3:35:03
↓ 821.3%
40K· 24.85 mi
10:12/mi
3:43:46
↓ 200.3%
25.2M
10:50/mi
3:47:30
↑ 13↓ 160.2%
Finish· 26.22 mi
9:57/mi
3:57:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:31
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time2:06:07
Pace9:37 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1925:048:0425:04
8:04
-
10K
6.21 mi11:21:1951:048:1326:00
8:22
+0:18
15K
9.32 mi11:48:001:17:458:2126:41
8:35
+0:13
20K
12.43 mi12:15:421:45:278:2927:42
8:55
+0:20
Half
13.11 mi12:21:461:51:318:306:04
8:54
-0:01
25K
15.53 mi12:43:592:13:448:3722:13
9:10
+0:16
30K
18.64 mi13:12:562:42:418:4428:57
9:19
+0:09
20M
20.00 mi13:25:462:55:318:4712:50
9:27
+0:08
21M
21.00 mi13:35:513:05:368:5010:05
10:05
+0:38
35K
21.75 mi13:42:583:12:438:527:07
9:31
-0:34
23M
23.00 mi13:55:253:25:108:5512:27
9:57
+0:26
24M
24.00 mi14:05:183:35:038:589:53
9:53
-0:04
40K
24.85 mi14:14:013:43:469:008:43
10:12
+0:19
25.2M
25.20 mi14:17:453:47:309:023:44
10:50
+0:38
Finish
26.22 mi14:27:533:57:389:0410:08
9:57
-0:53

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

8:04 /mi

Average Pace

9:04 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:31

47% of race

Time at Steady Pace

1:11:07

30% of race

Time at Slower Pace

55:00

23% of race

Average Pace: 9:04 /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 mi10:55:1925:048:0425:04
8:04
#14492
10K
6.21 mi11:21:1951:048:1326:00
8:22
#15956
15K
9.32 mi11:48:001:17:458:2126:41
8:35
#16802
20K
12.43 mi12:15:421:45:278:2927:42
8:55
#17464
Half
13.11 mi12:21:461:51:318:306:04
8:54
#17608
25K
15.53 mi12:43:592:13:448:3722:13
9:10
#18015
30K
18.64 mi13:12:562:42:418:4428:57
9:19
#18147
20M
20.00 mi13:25:462:55:318:4712:50
9:27
#18184
21M
21.00 mi13:35:513:05:368:5010:05
10:05
#18214
35K
21.75 mi13:42:583:12:438:527:07
9:31
#18282
23M
23.00 mi13:55:253:25:108:5512:27
9:57
#18416
24M
24.00 mi14:05:183:35:038:589:53
9:53
#18547
40K
24.85 mi14:14:013:43:469:008:43
10:12
#18681
25.2M
25.20 mi14:17:453:47:309:023:44
10:50
#18718
Finish
26.22 mi14:27:533:57:389:0410:08
9:57
#18880
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi144924324432418379(Top 69%)6723(Top 59%)6723(Top 825%)
10K6.21 mi3.10 mi15956-14645260-9365260-93617382(Top 65%)6115(Top 54%)6115(Top 750%)
15K9.32 mi3.11 mi16802-8465796-5365796-53618379(Top 69%)6723(Top 59%)6723(Top 825%)
20K12.43 mi3.11 mi17464-6626197-4016197-40119291(Top 72%)7262(Top 64%)7262(Top 891%)
Half13.11 mi0.68 mi17608-1446287-906287-9019966(Top 75%)7639(Top 67%)7639(Top 937%)
25K15.53 mi2.42 mi18015-4076543-2566543-25619686(Top 74%)7522(Top 66%)7522(Top 923%)
30K18.64 mi3.11 mi18147-1326659-1166659-11618718(Top 70%)7038(Top 62%)7038(Top 864%)
20M20.00 mi1.36 mi18184-376691-326691-3218654(Top 70%)7112(Top 62%)7112(Top 873%)
21M21.00 mi1.00 mi18214-306728-376728-3718344(Top 69%)6963(Top 61%)6963(Top 854%)
35K21.75 mi0.75 mi18282-686769-416769-4119898(Top 75%)7866(Top 69%)7866(Top 965%)
23M23.00 mi1.25 mi18416-1346862-936862-9319820(Top 74%)7856(Top 69%)7856(Top 964%)
24M24.00 mi1.00 mi18547-1316935-736935-7320466(Top 77%)8240(Top 72%)8240(Top 1011%)
40K24.85 mi0.85 mi18681-1347024-897024-8920475(Top 77%)8316(Top 73%)8316(Top 1020%)
25.2M25.20 mi0.35 mi18718-377058-347058-3420051(Top 75%)8082(Top 71%)8082(Top 992%)
Finish26.22 mi1.02 mi18880-1627140-827140-8221612(Top 81%)8912(Top 78%)8912(Top 1093%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18379

Females

6723

F55-59

6723

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17382

Females

6115

F55-59

6115

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18379

Females

6723

F55-59

6723

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19291

Females

7262

F55-59

7262

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

19966

Females

7639

F55-59

7639

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19686

Females

7522

F55-59

7522

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18718

Females

7038

F55-59

7038

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18654

Females

7112

F55-59

7112

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18344

Females

6963

F55-59

6963

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19898

Females

7866

F55-59

7866

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19820

Females

7856

F55-59

7856

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20466

Females

8240

F55-59

8240

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20475

Females

8316

F55-59

8316

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

20051

Females

8082

F55-59

8082

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21612

Females

8912

F55-59

8912

Passing Analysis

Category:
Athletes Passed
585
Passed By
4973
Net Change
-4388
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14492
5K → 10K251489-1464#14492#15956
10K → 15K25871-846#15956#16802
15K → 20K52714-662#16802#17464
20K → Half9153-144#17464#17608
Half → 25K36443-407#17608#18015
25K → 30K146278-132#18015#18147
30K → 20M73110-37#18147#18184
20M → 21M86116-30#18184#18214
21M → 35K2896-68#18214#18282
35K → 23M42176-134#18282#18416
23M → 24M20151-131#18416#18547
24M → 40K18152-134#18547#18681
40K → 25.2M1653-37#18681#18718
25.2M → Finish9171-162#18718#18880
TOTALS5854973-4388
📊

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