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BOSTON MARATHON 2023

Megan Kreill

Bib: 21574•F

OH

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
8:50/mi
27:26
↑ 97↓ 3451.5%
10K· 6.21 mi
9:28/mi
56:52
↑ 79↓ 1380.4%
15K· 9.32 mi
9:01/mi
1:24:52
↑ 67↓ 78
20K· 12.43 mi
9:04/mi
1:53:03
↑ 106↓ 860.1%
Half· 13.11 mi
9:10/mi
1:59:18
↑ 19↓ 370.5%
25K· 15.53 mi
9:15/mi
2:21:43
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:52:38
↑ 181↓ 1480.2%
20M
10:17/mi
3:06:37
↑ 64↓ 500.2%
21M
11:27/mi
3:18:04
↑ 106↓ 241.6%
35K· 21.75 mi
9:51/mi
3:25:26
↑ 17↓ 861.7%
23M
9:55/mi
3:37:51
↑ 23↓ 630.6%
24M
10:04/mi
3:47:55
↓ 821.3%
40K· 24.85 mi
9:58/mi
3:56:26
↓ 200.3%
25.2M
11:24/mi
4:00:22
↑ 13↓ 160.2%
Finish· 26.22 mi
9:30/mi
4:10:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:18
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:10:45
Pace9:58 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2927:268:5027:26
8:50
-
10K
6.21 mi11:49:5556:529:0929:26
9:28
+0:38
15K
9.32 mi12:17:551:24:529:0628:00
9:01
-0:27
20K
12.43 mi12:46:061:53:039:0628:11
9:04
+0:03
Half
13.11 mi12:52:211:59:189:066:15
9:10
+0:06
25K
15.53 mi13:14:462:21:439:0722:25
9:15
+0:05
30K
18.64 mi13:45:412:52:389:1630:55
9:57
+0:42
20M
20.00 mi13:59:403:06:379:2013:59
10:17
+0:20
21M
21.00 mi14:11:073:18:049:2611:27
11:27
+1:10
35K
21.75 mi14:18:293:25:269:277:22
9:51
-1:36
23M
23.00 mi14:30:543:37:519:2812:25
9:55
+0:04
24M
24.00 mi14:40:583:47:559:3010:04
10:04
+0:09
40K
24.85 mi14:49:293:56:269:318:31
9:58
-0:06
25.2M
25.20 mi14:53:254:00:229:323:56
11:24
+1:26
Finish
26.22 mi15:03:064:10:039:339:41
9:30
-1:54

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

8:50 /mi

Average Pace

9:33 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:43

57% of race

Time at Steady Pace

1:18:58

32% of race

Time at Slower Pace

29:22

12% of race

Average Pace: 9:32 /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 mi11:20:2927:268:5027:26
8:50
#19639
10K
6.21 mi11:49:5556:529:0929:26
9:28
#21256
15K
9.32 mi12:17:551:24:529:0628:00
9:01
#21054
20K
12.43 mi12:46:061:53:039:0628:11
9:04
#20770
Half
13.11 mi12:52:211:59:189:066:15
9:10
#20786
25K
15.53 mi13:14:462:21:439:0722:25
9:15
#20655
30K
18.64 mi13:45:412:52:389:1630:55
9:57
#20673
20M
20.00 mi13:59:403:06:379:2013:59
10:17
#20705
21M
21.00 mi14:11:073:18:049:2611:27
11:27
#20804
35K
21.75 mi14:18:293:25:269:277:22
9:51
#20790
23M
23.00 mi14:30:543:37:519:2812:25
9:55
#20707
24M
24.00 mi14:40:583:47:559:3010:04
10:04
#20725
40K
24.85 mi14:49:293:56:269:318:31
9:58
#20674
25.2M
25.20 mi14:53:254:00:229:323:56
11:24
#20687
Finish
26.22 mi15:03:064:10:039:339:41
9:30
#20664
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi196397603760320567(Top 77%)7995(Top 70%)7995(Top 662%)
10K6.21 mi3.10 mi21256-16178452-8498452-84922447(Top 84%)9054(Top 79%)9054(Top 750%)
15K9.32 mi3.11 mi21054+2028317+1358317+13520567(Top 77%)7995(Top 70%)7995(Top 662%)
20K12.43 mi3.11 mi20770+2848146+1718146+17120020(Top 75%)7692(Top 67%)7692(Top 637%)
Half13.11 mi0.68 mi20786-168153-78153-721056(Top 79%)8280(Top 72%)8280(Top 686%)
25K15.53 mi2.42 mi20655+1318074+798074+7920020(Top 75%)7705(Top 67%)7705(Top 638%)
30K18.64 mi3.11 mi20673-188094-208094-2020898(Top 78%)8285(Top 73%)8285(Top 686%)
20M20.00 mi1.36 mi20705-328132-388132-3821250(Top 80%)8550(Top 75%)8550(Top 708%)
21M21.00 mi1.00 mi20804-998193-618193-6121803(Top 82%)8889(Top 78%)8889(Top 736%)
35K21.75 mi0.75 mi20790+148204-118204-1120887(Top 78%)8429(Top 74%)8429(Top 698%)
23M23.00 mi1.25 mi20707+838170+348170+3419750(Top 74%)7825(Top 69%)7825(Top 648%)
24M24.00 mi1.00 mi20725-188191-218191-2120978(Top 79%)8529(Top 75%)8529(Top 707%)
40K24.85 mi0.85 mi20674+518173+188173+1819875(Top 75%)7992(Top 70%)7992(Top 662%)
25.2M25.20 mi0.35 mi20687-138188-158188-1521368(Top 80%)8787(Top 77%)8787(Top 728%)
Finish26.22 mi1.02 mi20664+238180+88180+820154(Top 76%)8090(Top 71%)8090(Top 670%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20567

Females

7995

F50-54

7995

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

22447

Females

9054

F50-54

9054

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20567

Females

7995

F50-54

7995

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

20020

Females

7692

F50-54

7692

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21056

Females

8280

F50-54

8280

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

20020

Females

7705

F50-54

7705

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20898

Females

8285

F50-54

8285

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21250

Females

8550

F50-54

8550

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

21803

Females

8889

F50-54

8889

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

20887

Females

8429

F50-54

8429

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19750

Females

7825

F50-54

7825

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20978

Females

8529

F50-54

8529

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19875

Females

7992

F50-54

7992

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21368

Females

8787

F50-54

8787

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

20154

Females

8090

F50-54

8090

Passing Analysis

Category:
Athletes Passed
1387
Passed By
2412
Net Change
-1025
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19639
5K → 10K141631-1617#19639#21256
10K → 15K28684+202#21256#21054
15K → 20K32238+284#21054#20770
20K → Half2642-16#20770#20786
Half → 25K17241+131#20786#20655
25K → 30K144162-18#20655#20673
30K → 20M6698-32#20673#20705
20M → 21M32131-99#20705#20804
21M → 35K4733+14#20804#20790
35K → 23M11330+83#20790#20707
23M → 24M3553-18#20707#20725
24M → 40K6413+51#20725#20674
40K → 25.2M1326-13#20674#20687
25.2M → Finish5330+23#20687#20664
TOTALS13872412-1025
📊

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