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BOSTON MARATHON 2024

Mary Grzybinski

Bib: 29511•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F55-59)
#0 / 876
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
9:17/mi
28:49
↑ 97↓ 3451.5%
10K· 6.21 mi
9:58/mi
59:47
↑ 79↓ 1380.4%
15K· 9.32 mi
11:38/mi
1:35:55
↑ 67↓ 78
20K· 12.43 mi
13:31/mi
2:17:56
↑ 106↓ 860.1%
Half· 13.11 mi
11:26/mi
2:25:44
↑ 19↓ 370.5%
25K· 15.53 mi
12:49/mi
2:56:49
↑ 66↓ 880.2%
30K· 18.64 mi
15:33/mi
3:45:09
↑ 181↓ 1480.2%
20M
14:26/mi
4:04:46
↑ 64↓ 500.2%
21M
16:33/mi
4:21:19
↑ 106↓ 241.6%
35K· 21.75 mi
14:42/mi
4:32:19
↑ 17↓ 861.7%
23M
17:22/mi
4:54:04
↑ 23↓ 630.6%
24M
14:46/mi
5:08:50
↓ 821.3%
40K· 24.85 mi
18:35/mi
5:24:43
↓ 200.3%
25.2M
19:40/mi
5:31:30
↑ 13↓ 160.2%
Finish· 26.22 mi
13:29/mi
5:45:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:25:44
Pace11:07 /mi
2nd Half
Distance13.11 mi
Time3:19:30
Pace15:13 /mi
📊Positive Split: 36.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5328:499:1728:49
9:17
-
10K
6.21 mi12:21:5159:479:3730:58
9:58
+0:41
15K
9.32 mi12:57:591:35:5510:1736:08
11:38
+1:40
20K
12.43 mi13:40:002:17:5611:0642:01
13:31
+1:53
Half
13.11 mi13:47:482:25:4411:077:48
11:26
-2:05
25K
15.53 mi14:18:532:56:4911:2331:05
12:49
+1:23
30K
18.64 mi15:07:133:45:0912:0548:20
15:33
+2:44
20M
20.00 mi15:26:504:04:4612:1419:37
14:26
-1:07
21M
21.00 mi15:43:234:21:1912:2716:33
16:33
+2:07
35K
21.75 mi15:54:234:32:1912:3111:00
14:42
-1:51
23M
23.00 mi16:16:084:54:0412:4721:45
17:22
+2:40
24M
24.00 mi16:30:545:08:5012:5214:46
14:46
-2:36
40K
24.85 mi16:46:475:24:4313:0415:53
18:35
+3:49
25.2M
25.20 mi16:53:345:31:3013:096:47
19:40
+1:05
Finish
26.22 mi17:07:185:45:1413:1113:44
13:29
-6:11

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

9:17 /mi

Average Pace

13:11 /mi

Slowest Pace

19:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:48

39% of race

Time at Steady Pace

2:29:28

43% of race

Time at Slower Pace

1:00:58

18% of race

Average Pace: 13:10 /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 mi11:50:5328:499:1728:49
9:17
#21058
10K
6.21 mi12:21:5159:479:3730:58
9:58
#21879
15K
9.32 mi12:57:591:35:5510:1736:08
11:38
#23115
20K
12.43 mi13:40:002:17:5611:0642:01
13:31
#24030
Half
13.11 mi13:47:482:25:4411:077:48
11:26
#24044
25K
15.53 mi14:18:532:56:4911:2331:05
12:49
#24068
30K
18.64 mi15:07:133:45:0912:0548:20
15:33
#24380
20M
20.00 mi15:26:504:04:4612:1419:37
14:26
#24396
21M
21.00 mi15:43:234:21:1912:2716:33
16:33
#24441
35K
21.75 mi15:54:234:32:1912:3111:00
14:42
#24477
23M
23.00 mi16:16:084:54:0412:4721:45
17:22
#24668
24M
24.00 mi16:30:545:08:5012:5214:46
14:46
#24722
40K
24.85 mi16:46:475:24:4313:0415:53
18:35
#24834
25.2M
25.20 mi16:53:345:31:3013:096:47
19:40
#24889
Finish
26.22 mi17:07:185:45:1413:1113:44
13:29
#24906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi210588429842924420(Top 96%)10226(Top 94%)10226(Top 1167%)
10K6.21 mi3.10 mi21879-8218852-4238852-42322486(Top 88%)9173(Top 84%)9173(Top 1047%)
15K9.32 mi3.11 mi23115-12369477-6259477-62524420(Top 96%)10226(Top 94%)10226(Top 1167%)
20K12.43 mi3.11 mi24030-9159984-5079984-50725171(Top 99%)10703(Top 98%)10703(Top 1222%)
Half13.11 mi0.68 mi24044-149992-89992-824034(Top 94%)10070(Top 92%)10070(Top 1150%)
25K15.53 mi2.42 mi24068-2410025-3310025-3324036(Top 94%)10097(Top 92%)10097(Top 1153%)
30K18.64 mi3.11 mi24380-31210224-19910224-19925206(Top 99%)10786(Top 99%)10786(Top 1231%)
20M20.00 mi1.36 mi24396-1610248-2410248-2424332(Top 95%)10390(Top 95%)10390(Top 1186%)
21M21.00 mi1.00 mi24441-4510285-3710285-3724852(Top 97%)10662(Top 98%)10662(Top 1217%)
35K21.75 mi0.75 mi24477-3610307-2210307-2224748(Top 97%)10640(Top 97%)10640(Top 1215%)
23M23.00 mi1.25 mi24668-19110435-12810435-12825361(Top 99%)10863(Top 99%)10863(Top 1240%)
24M24.00 mi1.00 mi24722-5410475-4010475-4024711(Top 97%)10654(Top 98%)10654(Top 1216%)
40K24.85 mi0.85 mi24834-11210539-6410539-6425400(Top 99%)10886(Top 100%)10886(Top 1243%)
25.2M25.20 mi0.35 mi24889-5510569-3010569-3025337(Top 99%)10864(Top 99%)10864(Top 1240%)
Finish26.22 mi1.02 mi24906-1710584-1510584-1524690(Top 97%)10666(Top 98%)10666(Top 1218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

24420

Females

10226

F55-59

10226

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

22486

Females

9173

F55-59

9173

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

24420

Females

10226

F55-59

10226

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

25171

Females

10703

F55-59

10703

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

24034

Females

10070

F55-59

10070

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

24036

Females

10097

F55-59

10097

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

25206

Females

10786

F55-59

10786

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

24332

Females

10390

F55-59

10390

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

24852

Females

10662

F55-59

10662

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

24748

Females

10640

F55-59

10640

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

25361

Females

10863

F55-59

10863

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

24711

Females

10654

F55-59

10654

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

25400

Females

10886

F55-59

10886

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

25337

Females

10864

F55-59

10864

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

24690

Females

10666

F55-59

10666

Passing Analysis

Category:
Athletes Passed
289
Passed By
4137
Net Change
-3848
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21058
5K → 10K40861-821#21058#21879
10K → 15K101246-1236#21879#23115
15K → 20K7922-915#23115#24030
20K → Half1731-14#24030#24044
Half → 25K6892-24#24044#24068
25K → 30K29341-312#24068#24380
30K → 20M3955-16#24380#24396
20M → 21M3176-45#24396#24441
21M → 35K1551-36#24441#24477
35K → 23M3194-191#24477#24668
23M → 24M1367-54#24668#24722
24M → 40K2114-112#24722#24834
40K → 25.2M055-55#24834#24889
25.2M → Finish1532-17#24889#24906
TOTALS2894137-3848
📊

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