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BOSTON MARATHON 2023

Michelle Greer

Bib: 18163•F

AR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 27%
Masters (Masters Women)
#0 / 6539
Top 14%
Division (F45-49)
#0 / 1817
Top 15%
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
8:07/mi
25:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
49:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:12:54
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:37:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:42:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:01:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:25:57
↑ 181↓ 1480.2%
20M
8:01/mi
2:36:50
↑ 64↓ 500.2%
21M
8:53/mi
2:45:43
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:51:32
↑ 17↓ 861.7%
23M
8:19/mi
3:01:57
↑ 23↓ 630.6%
24M
8:01/mi
3:09:58
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:17:03
↓ 200.3%
25.2M
9:46/mi
3:20:25
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
3:29:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:22
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:46:41
Pace8:08 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2325:148:0725:14
8:07
-
10K
6.21 mi11:40:2749:187:5624:04
7:45
-0:22
15K
9.32 mi12:04:031:12:547:4923:36
7:36
-0:09
20K
12.43 mi12:28:171:37:087:4924:14
7:48
+0:12
Half
13.11 mi12:33:311:42:227:495:14
7:40
-0:08
25K
15.53 mi12:52:272:01:187:4918:56
7:49
+0:09
30K
18.64 mi13:17:062:25:577:5024:39
7:56
+0:07
20M
20.00 mi13:27:592:36:507:5010:53
8:01
+0:05
21M
21.00 mi13:36:522:45:437:538:53
8:53
+0:52
35K
21.75 mi13:42:412:51:327:535:49
7:46
-1:07
23M
23.00 mi13:53:063:01:577:5510:25
8:19
+0:33
24M
24.00 mi14:01:073:09:587:558:01
8:01
-0:18
40K
24.85 mi14:08:123:17:037:567:05
8:17
+0:16
25.2M
25.20 mi14:11:343:20:257:573:22
9:46
+1:29
Finish
26.22 mi14:20:123:29:037:598:38
8:28
-1:18

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

7:36 /mi

Average Pace

7:59 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:50

14% of race

Time at Steady Pace

2:28:55

71% of race

Time at Slower Pace

31:18

15% of race

Average Pace: 7:58 /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 mi11:16:2325:148:0725:14
8:07
#14873
10K
6.21 mi11:40:2749:187:5624:04
7:45
#13853
15K
9.32 mi12:04:031:12:547:4923:36
7:36
#12891
20K
12.43 mi12:28:171:37:087:4924:14
7:48
#12537
Half
13.11 mi12:33:311:42:227:495:14
7:40
#12487
25K
15.53 mi12:52:272:01:187:4918:56
7:49
#12257
30K
18.64 mi13:17:062:25:577:5024:39
7:56
#11853
20M
20.00 mi13:27:592:36:507:5010:53
8:01
#11727
21M
21.00 mi13:36:522:45:437:538:53
8:53
#11792
35K
21.75 mi13:42:412:51:327:535:49
7:46
#11747
23M
23.00 mi13:53:063:01:577:5510:25
8:19
#11741
24M
24.00 mi14:01:073:09:587:558:01
8:01
#11711
40K
24.85 mi14:08:123:17:037:567:05
8:17
#11716
25.2M
25.20 mi14:11:343:20:257:573:22
9:46
#11806
Finish
26.22 mi14:20:123:29:037:598:38
8:28
#11969
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi148734559455911006(Top 41%)2350(Top 21%)2350(Top 129%)
10K6.21 mi3.10 mi13853+10203949+6103949+61012656(Top 48%)3232(Top 28%)3232(Top 178%)
15K9.32 mi3.11 mi12891+9623393+5563393+55611006(Top 41%)2350(Top 21%)2350(Top 129%)
20K12.43 mi3.11 mi12537+3543219+1743219+17411763(Top 44%)2826(Top 25%)2826(Top 156%)
Half13.11 mi0.68 mi12487+503193+263193+2611715(Top 44%)2759(Top 24%)2759(Top 152%)
25K15.53 mi2.42 mi12257+2303088+1053088+10511184(Top 42%)2586(Top 23%)2586(Top 142%)
30K18.64 mi3.11 mi11853+4042896+1922896+19210411(Top 39%)2359(Top 21%)2359(Top 130%)
20M20.00 mi1.36 mi11727+1262840+562840+5610373(Top 39%)2419(Top 21%)2419(Top 133%)
21M21.00 mi1.00 mi11792-652898-582898-5812767(Top 48%)3818(Top 33%)3818(Top 210%)
35K21.75 mi0.75 mi11747+452882+162882+1610538(Top 40%)2638(Top 23%)2638(Top 145%)
23M23.00 mi1.25 mi11741+62900-182900-1812052(Top 45%)3541(Top 31%)3541(Top 195%)
24M24.00 mi1.00 mi11711+302902-22902-211383(Top 43%)3278(Top 29%)3278(Top 180%)
40K24.85 mi0.85 mi11716-52930-282930-2811939(Top 45%)3629(Top 32%)3629(Top 200%)
25.2M25.20 mi0.35 mi11806-902994-642994-6416370(Top 61%)6064(Top 53%)6064(Top 334%)
Finish26.22 mi1.02 mi11969-1633106-1123106-11215239(Top 57%)5382(Top 47%)5382(Top 296%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11006

Females

2350

F45-49

2350

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12656

Females

3232

F45-49

3232

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11006

Females

2350

F45-49

2350

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11763

Females

2826

F45-49

2826

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11715

Females

2759

F45-49

2759

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11184

Females

2586

F45-49

2586

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10411

Females

2359

F45-49

2359

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10373

Females

2419

F45-49

2419

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12767

Females

3818

F45-49

3818

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10538

Females

2638

F45-49

2638

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12052

Females

3541

F45-49

3541

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11383

Females

3278

F45-49

3278

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11939

Females

3629

F45-49

3629

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16370

Females

6064

F45-49

6064

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

15239

Females

5382

F45-49

5382

Passing Analysis

Category:
Athletes Passed
3788
Passed By
884
Net Change
+2904
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14873
5K → 10K107656+1020#14873#13853
10K → 15K9719+962#13853#12891
15K → 20K40349+354#12891#12537
20K → Half6212+50#12537#12487
Half → 25K25424+230#12487#12257
25K → 30K43834+404#12257#11853
30K → 20M16438+126#11853#11727
20M → 21M66131-65#11727#11792
21M → 35K7227+45#11792#11747
35K → 23M9690+6#11747#11741
23M → 24M8454+30#11741#11711
24M → 40K6267-5#11711#11716
40K → 25.2M10100-90#11716#11806
25.2M → Finish30193-163#11806#11969
TOTALS3788884+2904
📊

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