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BOSTON MARATHON 2024

Stefanie Chamis

Bib: 18031•F

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Overall
#0 / 25550
Top 41%
Gender (Female)
#0 / 10924
Top 27%
Division (F18-39)
#0 / 4660
Top 44%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:35
Rank: #16245
Start → 5K
25:35 | 8:14/mi
10K· 6.21 mi
50:45
Rank: #15557 (+688)
5K → 10K
25:10 | 8:06/mi
15K· 9.32 mi
1:14:35
Rank: #14073 (+1484)
10K → 15K
23:50 | 7:40/mi
20K· 12.43 mi
1:38:40
Rank: #12933 (+1140)
15K → 20K
24:05 | 7:45/mi
Half· 13.11 mi
1:43:51
Rank: #12763 (+170)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
2:02:44
Rank: #11981 (+782)
Half → 25K
18:53 | 7:47/mi
30K· 18.64 mi
2:28:25
Rank: #11392 (+589)
25K → 30K
25:41 | 8:16/mi
20M
2:40:11
Rank: #11255 (+137)
30K → 20M
11:46 | 8:40/mi
21M
2:49:13
Rank: #11013 (+242)
20M → 21M
9:02 | 9:02/mi
35K· 21.75 mi
2:55:25
Rank: #10906 (+107)
21M → 35K
6:12 | 8:17/mi
23M
3:06:23
Rank: #10826 (+80)
35K → 23M
10:58 | 8:46/mi
24M
3:14:57
Rank: #10739 (+87)
23M → 24M
8:34 | 8:34/mi
40K· 24.85 mi
3:22:32
Rank: #10679 (+60)
24M → 40K
7:35 | 8:52/mi
25.2M
3:25:55
Rank: #10657 (+22)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:34:13
Rank: #10586 (+71)
25.2M → Finish
8:18 | 8:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:51
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:50:22
Pace8:25 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2825:358:1425:35
8:14
-
10K
6.21 mi11:42:3850:458:1025:10
8:06
-0:08
15K
9.32 mi12:06:281:14:358:0023:50
7:40
-0:26
20K
12.43 mi12:30:331:38:407:5624:05
7:45
+0:05
Half
13.11 mi12:35:441:43:517:555:11
7:36
-0:09
25K
15.53 mi12:54:372:02:447:5418:53
7:47
+0:11
30K
18.64 mi13:20:182:28:257:5825:41
8:16
+0:29
20M
20.00 mi13:32:042:40:118:0111:46
8:40
+0:24
21M
21.00 mi13:41:062:49:138:039:02
9:02
+0:22
35K
21.75 mi13:47:182:55:258:046:12
8:17
-0:45
23M
23.00 mi13:58:163:06:238:0610:58
8:46
+0:29
24M
24.00 mi14:06:503:14:578:078:34
8:34
-0:12
40K
24.85 mi14:14:253:22:328:097:35
8:52
+0:18
25.2M
25.20 mi14:17:483:25:558:103:23
9:49
+0:57
Finish
26.22 mi14:26:063:34:138:118:18
8:09
-1:40

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

8:11 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:59

34% of race

Time at Steady Pace

1:30:56

42% of race

Time at Slower Pace

51:18

24% of race

Average Pace: 8:10 /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 mi11:17:2825:358:1425:35
8:14
#16245
10K
6.21 mi11:42:3850:458:1025:10
8:06
#15557
15K
9.32 mi12:06:281:14:358:0023:50
7:40
#14073
20K
12.43 mi12:30:331:38:407:5624:05
7:45
#12933
Half
13.11 mi12:35:441:43:517:555:11
7:36
#12763
25K
15.53 mi12:54:372:02:447:5418:53
7:47
#11981
30K
18.64 mi13:20:182:28:257:5825:41
8:16
#11392
20M
20.00 mi13:32:042:40:118:0111:46
8:40
#11255
21M
21.00 mi13:41:062:49:138:039:02
9:02
#11013
35K
21.75 mi13:47:182:55:258:046:12
8:17
#10906
23M
23.00 mi13:58:163:06:238:0610:58
8:46
#10826
24M
24.00 mi14:06:503:14:578:078:34
8:34
#10739
40K
24.85 mi14:14:253:22:328:097:35
8:52
#10679
25.2M
25.20 mi14:17:483:25:558:103:23
9:49
#10657
Finish
26.22 mi14:26:063:34:138:118:18
8:09
#10586
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi162455704570410990(Top 43%)2687(Top 25%)2687(Top 58%)
10K6.21 mi3.10 mi15557+6885274+4305274+43014867(Top 58%)4853(Top 44%)4853(Top 104%)
15K9.32 mi3.11 mi14073+14844385+8894385+88910990(Top 43%)2687(Top 25%)2687(Top 58%)
20K12.43 mi3.11 mi12933+11403732+6533732+65310097(Top 40%)2374(Top 22%)2374(Top 51%)
Half13.11 mi0.68 mi12763+1703647+853647+859904(Top 39%)2261(Top 21%)2261(Top 49%)
25K15.53 mi2.42 mi11981+7823252+3953252+3958876(Top 35%)1948(Top 18%)1948(Top 42%)
30K18.64 mi3.11 mi11392+5893040+2123040+2129394(Top 37%)2407(Top 22%)2407(Top 52%)
20M20.00 mi1.36 mi11255+1373018+223018+2210325(Top 40%)3111(Top 28%)3111(Top 67%)
21M21.00 mi1.00 mi11013+2422939+792939+798774(Top 34%)2574(Top 24%)2574(Top 55%)
35K21.75 mi0.75 mi10906+1072927+122927+129523(Top 37%)2971(Top 27%)2971(Top 64%)
23M23.00 mi1.25 mi10826+802943-162943-169877(Top 39%)3330(Top 30%)3330(Top 71%)
24M24.00 mi1.00 mi10739+872950-72950-79864(Top 39%)3367(Top 31%)3367(Top 72%)
40K24.85 mi0.85 mi10679+602971-212971-2110254(Top 40%)3688(Top 34%)3688(Top 79%)
25.2M25.20 mi0.35 mi10657+222979-82979-810161(Top 40%)3691(Top 34%)3691(Top 79%)
Finish26.22 mi1.02 mi10586+712984-52984-59477(Top 37%)3266(Top 30%)3266(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

10990

Females

2687

F18-39

2687

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

14867

Females

4853

F18-39

4853

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

10990

Females

2687

F18-39

2687

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10097

Females

2374

F18-39

2374

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

9904

Females

2261

F18-39

2261

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

8876

Females

1948

F18-39

1948

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9394

Females

2407

F18-39

2407

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10325

Females

3111

F18-39

3111

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

8774

Females

2574

F18-39

2574

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9523

Females

2971

F18-39

2971

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

9877

Females

3330

F18-39

3330

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

9864

Females

3367

F18-39

3367

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10254

Females

3688

F18-39

3688

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10161

Females

3691

F18-39

3691

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9477

Females

3266

F18-39

3266

Passing Analysis

Category:
Athletes Passed
6214*
Passed By
555
Net Change
+5659
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16245
5K → 10K76173+688#16245#15557
10K → 15K14851+1484#15557#14073
15K → 20K11411+1140#14073#12933
20K → Half1733+170#12933#12763
Half → 25K7820+782#12763#11981
25K → 30K64253+589#11981#11392
30K → 20M21780+137#11392#11255
20M → 21M28341+242#11255#11013
21M → 35K13225+107#11013#10906
35K → 23M17191+80#10906#10826
23M → 24M14053+87#10826#10739
24M → 40K119*59+60#10739#10679
40K → 25.2M5028+22#10679#10657
25.2M → Finish11847+71#10657#10586
TOTALS6214*555+5659

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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