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BOSTON MARATHON 2023

Megan Grosso

Bib: 26790•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
30:52
↑ 97↓ 3451.5%
10K· 6.21 mi
9:43/mi
1:01:04
↑ 79↓ 1380.4%
15K· 9.32 mi
9:52/mi
1:31:44
↑ 67↓ 78
20K· 12.43 mi
10:06/mi
2:03:08
↑ 106↓ 860.1%
Half· 13.11 mi
10:01/mi
2:09:58
↑ 19↓ 370.5%
25K· 15.53 mi
10:12/mi
2:34:43
↑ 66↓ 880.2%
30K· 18.64 mi
10:31/mi
3:07:22
↑ 181↓ 1480.2%
20M
10:34/mi
3:21:44
↑ 64↓ 500.2%
21M
11:02/mi
3:32:46
↑ 106↓ 241.6%
35K· 21.75 mi
10:03/mi
3:40:17
↑ 17↓ 861.7%
23M
10:17/mi
3:53:10
↑ 23↓ 630.6%
24M
10:07/mi
4:03:17
↓ 821.3%
40K· 24.85 mi
9:58/mi
4:11:48
↓ 200.3%
25.2M
12:11/mi
4:16:00
↑ 13↓ 160.2%
Finish· 26.22 mi
10:16/mi
4:26:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:58
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:16:30
Pace10:25 /mi
📊Positive Split: 5.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2130:529:5630:52
9:56
-
10K
6.21 mi12:17:331:01:049:5030:12
9:43
-0:13
15K
9.32 mi12:48:131:31:449:5130:40
9:52
+0:09
20K
12.43 mi13:19:372:03:089:5431:24
10:06
+0:14
Half
13.11 mi13:26:272:09:589:556:50
10:01
-0:05
25K
15.53 mi13:51:122:34:439:5824:45
10:12
+0:11
30K
18.64 mi14:23:513:07:2210:0332:39
10:31
+0:19
20M
20.00 mi14:38:133:21:4410:0514:22
10:34
+0:03
21M
21.00 mi14:49:153:32:4610:0811:02
11:02
+0:28
35K
21.75 mi14:56:463:40:1710:087:31
10:03
-0:59
23M
23.00 mi15:09:393:53:1010:0812:53
10:17
+0:14
24M
24.00 mi15:19:464:03:1710:0810:07
10:07
-0:10
40K
24.85 mi15:28:174:11:4810:088:31
9:58
-0:09
25.2M
25.20 mi15:32:294:16:0010:104:12
12:11
+2:13
Finish
26.22 mi15:42:574:26:2810:1010:28
10:16
-1:55

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

9:43 /mi

Average Pace

10:10 /mi

Slowest Pace

12:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:12

11% of race

Time at Steady Pace

2:54:01

65% of race

Time at Slower Pace

1:02:15

23% of race

Average Pace: 10:10 /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 mi11:47:2130:529:5630:52
9:56
#23295
10K
6.21 mi12:17:331:01:049:5030:12
9:43
#23225
15K
9.32 mi12:48:131:31:449:5130:40
9:52
#23240
20K
12.43 mi13:19:372:03:089:5431:24
10:06
#23220
Half
13.11 mi13:26:272:09:589:556:50
10:01
#23222
25K
15.53 mi13:51:122:34:439:5824:45
10:12
#23093
30K
18.64 mi14:23:513:07:2210:0332:39
10:31
#22906
20M
20.00 mi14:38:133:21:4410:0514:22
10:34
#22819
21M
21.00 mi14:49:153:32:4610:0811:02
11:02
#22728
35K
21.75 mi14:56:463:40:1710:087:31
10:03
#22688
23M
23.00 mi15:09:393:53:1010:0812:53
10:17
#22565
24M
24.00 mi15:19:464:03:1710:0810:07
10:07
#22506
40K
24.85 mi15:28:174:11:4810:088:31
9:58
#22427
25.2M
25.20 mi15:32:294:16:0010:104:12
12:11
#22422
Finish
26.22 mi15:42:574:26:2810:1010:28
10:16
#22424
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi232959546954623238(Top 87%)9464(Top 83%)9464(Top 504%)
10K6.21 mi3.10 mi23225+709489+579489+5723095(Top 87%)9382(Top 82%)9382(Top 500%)
15K9.32 mi3.11 mi23240-159480+99480+923238(Top 87%)9464(Top 83%)9464(Top 504%)
20K12.43 mi3.11 mi23220+209464+169464+1623127(Top 87%)9416(Top 82%)9416(Top 501%)
Half13.11 mi0.68 mi23222-29468-49468-423307(Top 88%)9516(Top 83%)9516(Top 507%)
25K15.53 mi2.42 mi23093+1299408+609408+6022631(Top 85%)9183(Top 80%)9183(Top 489%)
30K18.64 mi3.11 mi22906+1879329+799329+7922233(Top 84%)9034(Top 79%)9034(Top 481%)
20M20.00 mi1.36 mi22819+879300+299300+2921910(Top 82%)8931(Top 78%)8931(Top 476%)
21M21.00 mi1.00 mi22728+919263+379263+3720909(Top 79%)8408(Top 74%)8408(Top 448%)
35K21.75 mi0.75 mi22688+409256+79256+721433(Top 81%)8737(Top 76%)8737(Top 465%)
23M23.00 mi1.25 mi22565+1239192+649192+6420820(Top 78%)8420(Top 74%)8420(Top 448%)
24M24.00 mi1.00 mi22506+599164+289164+2821127(Top 79%)8626(Top 76%)8626(Top 459%)
40K24.85 mi0.85 mi22427+799131+339131+3319886(Top 75%)8003(Top 70%)8003(Top 426%)
25.2M25.20 mi0.35 mi22422+59134-39134-322820(Top 86%)9558(Top 84%)9558(Top 509%)
Finish26.22 mi1.02 mi22424-29139-59139-522477(Top 84%)9372(Top 82%)9372(Top 499%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23238

Females

9464

F40-44

9464

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23095

Females

9382

F40-44

9382

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23238

Females

9464

F40-44

9464

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23127

Females

9416

F40-44

9416

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23307

Females

9516

F40-44

9516

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22631

Females

9183

F40-44

9183

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

22233

Females

9034

F40-44

9034

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21910

Females

8931

F40-44

8931

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20909

Females

8408

F40-44

8408

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21433

Females

8737

F40-44

8737

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20820

Females

8420

F40-44

8420

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

21127

Females

8626

F40-44

8626

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19886

Females

8003

F40-44

8003

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22820

Females

9558

F40-44

9558

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22477

Females

9372

F40-44

9372

Passing Analysis

Category:
Athletes Passed
1527
Passed By
656
Net Change
+871
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23295
5K → 10K249179+70#23295#23225
10K → 15K135150-15#23225#23240
15K → 20K11898+20#23240#23220
20K → Half3234-2#23220#23222
Half → 25K17243+129#23222#23093
25K → 30K22437+187#23093#22906
30K → 20M11023+87#22906#22819
20M → 21M10514+91#22819#22728
21M → 35K499+40#22728#22688
35K → 23M13411+123#22688#22565
23M → 24M689+59#22565#22506
24M → 40K790+79#22506#22427
40K → 25.2M2015+5#22427#22422
25.2M → Finish3234-2#22422#22424
TOTALS1527656+871
📊

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