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BOSTON MARATHON 2024

Marissa Griffin

Bib: 10585•F

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Overall
#0 / 25550
Top 32%
Gender (Female)
#0 / 10924
Top 17%
Division (F18-39)
#0 / 4660
Top 30%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:51
Rank: #9607
Start → 5K
7:21/mi
22:51 split
10K· 6.21 mi
46:23
Rank: #10183 (-576)
5K → 10K
7:34/mi
23:32 split
15K· 9.32 mi
1:08:59
Rank: #9364 (+819)
10K → 15K
7:16/mi
22:36 split
20K· 12.43 mi
1:32:12
Rank: #9005 (+359)
15K → 20K
7:28/mi
23:13 split
Half· 13.11 mi
1:37:14
Rank: #8961 (+44)
20K → Half
7:23/mi
5:02 split
25K· 15.53 mi
1:55:28
Rank: #8582 (+379)
Half → 25K
7:31/mi
18:14 split
30K· 18.64 mi
2:19:59
Rank: #8221 (+361)
25K → 30K
7:53/mi
24:31 split
20M
2:31:01
Rank: #8107 (+114)
30K → 20M
8:07/mi
11:02 split
21M
2:39:39
Rank: #7925 (+182)
20M → 21M
8:38/mi
8:38 split
35K· 21.75 mi
2:45:38
Rank: #7871 (+54)
21M → 35K
8:00/mi
5:59 split
23M
2:58:21
Rank: #8410 (-539)
35K → 23M
10:09/mi
12:43 split
24M
3:06:41
Rank: #8365 (+45)
23M → 24M
8:20/mi
8:20 split
40K· 24.85 mi
3:13:59
Rank: #8330 (+35)
24M → 40K
8:32/mi
7:18 split
25.2M
3:17:07
Rank: #8273 (+57)
40K → 25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:25:14
Rank: #8238 (+35)
25.2M → Finish
7:58/mi
8:07 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:14
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:48:00
Pace8:14 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0622:517:2122:51
7:21
-
10K
6.21 mi11:13:3846:237:2823:32
7:34
+0:13
15K
9.32 mi11:36:141:08:597:2422:36
7:16
-0:18
20K
12.43 mi11:59:271:32:127:2523:13
7:28
+0:12
Half
13.11 mi12:04:291:37:147:255:02
7:23
-0:05
25K
15.53 mi12:22:431:55:287:2618:14
7:31
+0:08
30K
18.64 mi12:47:142:19:597:3124:31
7:53
+0:22
20M
20.00 mi12:58:162:31:017:3311:02
8:07
+0:14
21M
21.00 mi13:06:542:39:397:368:38
8:38
+0:31
35K
21.75 mi13:12:532:45:387:375:59
8:00
-0:38
23M
23.00 mi13:25:362:58:217:4512:43
10:09
+2:09
24M
24.00 mi13:33:563:06:417:478:20
8:20
-1:49
40K
24.85 mi13:41:143:13:597:487:18
8:32
+0:12
25.2M
25.20 mi13:44:223:17:077:493:08
9:05
+0:33
Finish
26.22 mi13:52:293:25:147:508:07
7:58
-1:07

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

7:16 /mi

Average Pace

7:50 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:28

56% of race

Time at Steady Pace

57:59

28% of race

Time at Slower Pace

31:47

15% of race

Average Pace: 7:50 /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 mi10:50:0622:517:2122:51
7:21
#9607
10K
6.21 mi11:13:3846:237:2823:32
7:34
#10183
15K
9.32 mi11:36:141:08:597:2422:36
7:16
#9364
20K
12.43 mi11:59:271:32:127:2523:13
7:28
#9005
Half
13.11 mi12:04:291:37:147:255:02
7:23
#8961
25K
15.53 mi12:22:431:55:287:2618:14
7:31
#8582
30K
18.64 mi12:47:142:19:597:3124:31
7:53
#8221
20M
20.00 mi12:58:162:31:017:3311:02
8:07
#8107
21M
21.00 mi13:06:542:39:397:368:38
8:38
#7925
35K
21.75 mi13:12:532:45:387:375:59
8:00
#7871
23M
23.00 mi13:25:362:58:217:4512:43
10:09
#8410
24M
24.00 mi13:33:563:06:417:478:20
8:20
#8365
40K
24.85 mi13:41:143:13:597:487:18
8:32
#8330
25.2M
25.20 mi13:44:223:17:077:493:08
9:05
#8273
Finish
26.22 mi13:52:293:25:147:508:07
7:58
#8238
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9607184418447994(Top 31%)1262(Top 12%)1262(Top 27%)
10K6.21 mi3.10 mi10183-5762146-3022146-30210891(Top 43%)2583(Top 24%)2583(Top 55%)
15K9.32 mi3.11 mi9364+8191791+3551791+3557994(Top 31%)1262(Top 12%)1262(Top 27%)
20K12.43 mi3.11 mi9005+3591669+1221669+1228195(Top 32%)1467(Top 13%)1467(Top 31%)
Half13.11 mi0.68 mi8961+441659+101659+108303(Top 32%)1505(Top 14%)1505(Top 32%)
25K15.53 mi2.42 mi8582+3791534+1251534+1257126(Top 28%)1218(Top 11%)1218(Top 26%)
30K18.64 mi3.11 mi8221+3611484+501484+507246(Top 28%)1460(Top 13%)1460(Top 31%)
20M20.00 mi1.36 mi8107+1141485-11485-17425(Top 29%)1725(Top 16%)1725(Top 37%)
21M21.00 mi1.00 mi7925+1821450+351450+356860(Top 27%)1651(Top 15%)1651(Top 35%)
35K21.75 mi0.75 mi7871+541457-71457-77790(Top 30%)2118(Top 19%)2118(Top 45%)
23M23.00 mi1.25 mi8410-5391766-3091766-30915987(Top 63%)6385(Top 58%)6385(Top 137%)
24M24.00 mi1.00 mi8365+451795-291795-298475(Top 33%)2691(Top 25%)2691(Top 58%)
40K24.85 mi0.85 mi8330+351830-351830-358564(Top 34%)2845(Top 26%)2845(Top 61%)
25.2M25.20 mi0.35 mi8273+571828+21828+26976(Top 27%)2156(Top 20%)2156(Top 46%)
Finish26.22 mi1.02 mi8238+351850-221850-228332(Top 33%)2735(Top 25%)2735(Top 59%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

7994

Females

1262

F18-39

1262

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

10891

Females

2583

F18-39

2583

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

7994

Females

1262

F18-39

1262

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8195

Females

1467

F18-39

1467

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8303

Females

1505

F18-39

1505

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7126

Females

1218

F18-39

1218

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7246

Females

1460

F18-39

1460

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7425

Females

1725

F18-39

1725

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

6860

Females

1651

F18-39

1651

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7790

Females

2118

F18-39

2118

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

15987

Females

6385

F18-39

6385

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8475

Females

2691

F18-39

2691

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8564

Females

2845

F18-39

2845

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

6976

Females

2156

F18-39

2156

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8332

Females

2735

F18-39

2735

Passing Analysis

Category:
Athletes Passed
3149*
Passed By
1779
Net Change
+1369
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9607
5K → 10K98673-576#9607#10183
10K → 15K821*2+819#10183#9364
15K → 20K40142+359#9364#9005
20K → Half5814+44#9005#8961
Half → 25K40930+379#8961#8582
25K → 30K45998+361#8582#8221
30K → 20M17965+114#8221#8107
20M → 21M21533+182#8107#7925
21M → 35K9036+54#7925#7871
35K → 23M44583-539#7871#8410
23M → 24M11368+45#8410#8365
24M → 40K9863+35#8365#8330
40K → 25.2M7013+57#8330#8273
25.2M → Finish9459+35#8273#8238
TOTALS3149*1779+1369

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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