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BOSTON MARATHON 2024

Calista Stefaniak

Bib: 10921•F

IL

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 33%
Gender (Female)
#0 / 10924
Top 18%
Division (F18-39)
#0 / 4660
Top 32%
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
7:12/mi
22:22
↑ 97↓ 3451.5%
10K· 6.21 mi
7:14/mi
44:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:08:08
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:32:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:37:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
1:57:10
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:23:31
↑ 181↓ 1480.2%
20M
8:28/mi
2:35:01
↑ 64↓ 500.2%
21M
9:03/mi
2:44:04
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
2:50:11
↑ 17↓ 861.7%
23M
8:19/mi
3:00:36
↑ 23↓ 630.6%
24M
8:01/mi
3:08:37
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:15:44
↓ 200.3%
25.2M
8:56/mi
3:18:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:26:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:39
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:48:47
Pace8:18 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:4322:227:1222:22
7:12
-
10K
6.21 mi11:11:1244:517:1322:29
7:14
+0:02
15K
9.32 mi11:34:291:08:087:1923:17
7:30
+0:16
20K
12.43 mi11:58:441:32:237:2624:15
7:48
+0:18
Half
13.11 mi12:04:001:37:397:275:16
7:43
-0:05
25K
15.53 mi12:23:311:57:107:3319:31
8:03
+0:20
30K
18.64 mi12:49:522:23:317:4226:21
8:29
+0:26
20M
20.00 mi13:01:222:35:017:4511:30
8:28
-0:01
21M
21.00 mi13:10:252:44:047:499:03
9:03
+0:35
35K
21.75 mi13:16:322:50:117:506:07
8:11
-0:52
23M
23.00 mi13:26:573:00:367:5110:25
8:19
+0:08
24M
24.00 mi13:34:583:08:377:528:01
8:01
-0:18
40K
24.85 mi13:42:053:15:447:537:07
8:19
+0:18
25.2M
25.20 mi13:45:103:18:497:533:05
8:56
+0:37
Finish
26.22 mi13:52:473:26:267:537:37
7:28
-1:28

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

7:12 /mi

Average Pace

7:53 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:01

39% of race

Time at Steady Pace

1:15:26

37% of race

Time at Slower Pace

49:59

24% of race

Average Pace: 7:52 /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 mi10:48:4322:227:1222:22
7:12
#8435
10K
6.21 mi11:11:1244:517:1322:29
7:14
#8271
15K
9.32 mi11:34:291:08:087:1923:17
7:30
#8687
20K
12.43 mi11:58:441:32:237:2624:15
7:48
#9122
Half
13.11 mi12:04:001:37:397:275:16
7:43
#9206
25K
15.53 mi12:23:311:57:107:3319:31
8:03
#9378
30K
18.64 mi12:49:522:23:317:4226:21
8:29
#9538
20M
20.00 mi13:01:222:35:017:4511:30
8:28
#9442
21M
21.00 mi13:10:252:44:047:499:03
9:03
#9310
35K
21.75 mi13:16:322:50:117:506:07
8:11
#9264
23M
23.00 mi13:26:573:00:367:5110:25
8:19
#9056
24M
24.00 mi13:34:583:08:377:528:01
8:01
#8917
40K
24.85 mi13:42:053:15:447:537:07
8:19
#8796
25.2M
25.20 mi13:45:103:18:497:533:05
8:56
#8716
Finish
26.22 mi13:52:473:26:267:537:37
7:28
#8539
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8435135413549656(Top 38%)2001(Top 18%)2001(Top 43%)
10K6.21 mi3.10 mi8271+1641320+341320+348199(Top 32%)1321(Top 12%)1321(Top 28%)
15K9.32 mi3.11 mi8687-4161502-1821502-1829656(Top 38%)2001(Top 18%)2001(Top 43%)
20K12.43 mi3.11 mi9122-4351728-2261728-22610476(Top 41%)2566(Top 23%)2566(Top 55%)
Half13.11 mi0.68 mi9206-841768-401768-4010761(Top 42%)2658(Top 24%)2658(Top 57%)
25K15.53 mi2.42 mi9378-1721888-1201888-12010519(Top 41%)2734(Top 25%)2734(Top 59%)
30K18.64 mi3.11 mi9538-1602078-1902078-19010566(Top 41%)2969(Top 27%)2969(Top 64%)
20M20.00 mi1.36 mi9442+962091-132091-139247(Top 36%)2577(Top 24%)2577(Top 55%)
21M21.00 mi1.00 mi9310+132209120918832(Top 35%)2599(Top 24%)2599(Top 56%)
35K21.75 mi0.75 mi9264+462103-122103-128860(Top 35%)2641(Top 24%)2641(Top 57%)
23M23.00 mi1.25 mi9056+2082061+422061+427484(Top 29%)2133(Top 20%)2133(Top 46%)
24M24.00 mi1.00 mi8917+1392037+242037+246749(Top 26%)1884(Top 17%)1884(Top 40%)
40K24.85 mi0.85 mi8796+1212029+82029+87488(Top 29%)2367(Top 22%)2367(Top 51%)
25.2M25.20 mi0.35 mi8716+802019+102019+106337(Top 25%)1868(Top 17%)1868(Top 40%)
Finish26.22 mi1.02 mi8539+1771986+331986+335522(Top 22%)1420(Top 13%)1420(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

9656

Females

2001

F18-39

2001

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8199

Females

1321

F18-39

1321

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

9656

Females

2001

F18-39

2001

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10476

Females

2566

F18-39

2566

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

10761

Females

2658

F18-39

2658

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10519

Females

2734

F18-39

2734

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10566

Females

2969

F18-39

2969

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9247

Females

2577

F18-39

2577

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

8832

Females

2599

F18-39

2599

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

8860

Females

2641

F18-39

2641

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7484

Females

2133

F18-39

2133

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6749

Females

1884

F18-39

1884

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7488

Females

2367

F18-39

2367

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6337

Females

1868

F18-39

1868

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5522

Females

1420

F18-39

1420

Passing Analysis

Category:
Athletes Passed
2166
Passed By
2270
Net Change
-104
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8435
5K → 10K308144+164#8435#8271
10K → 15K74490-416#8271#8687
15K → 20K87522-435#8687#9122
20K → Half21105-84#9122#9206
Half → 25K152324-172#9206#9378
25K → 30K214374-160#9378#9538
30K → 20M18185+96#9538#9442
20M → 21M19462+132#9442#9310
21M → 35K9448+46#9310#9264
35K → 23M24436+208#9264#9056
23M → 24M16324+139#9056#8917
24M → 40K15332+121#8917#8796
40K → 25.2M9111+80#8796#8716
25.2M → Finish19013+177#8716#8539
TOTALS21662270-104
📊

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