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BOSTON MARATHON 2024

Bozena Czak

Bib: 22143•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
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
9:10/mi
28:28
↑ 97↓ 3451.5%
10K· 6.21 mi
9:20/mi
57:29
↑ 79↓ 1380.4%
15K· 9.32 mi
9:45/mi
1:27:48
↑ 67↓ 78
20K· 12.43 mi
9:51/mi
1:58:25
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
2:04:47
↑ 19↓ 370.5%
25K· 15.53 mi
9:58/mi
2:28:57
↑ 66↓ 880.2%
30K· 18.64 mi
10:00/mi
3:00:02
↑ 181↓ 1480.2%
20M
10:06/mi
3:13:46
↑ 64↓ 500.2%
21M
11:06/mi
3:24:52
↑ 106↓ 241.6%
35K· 21.75 mi
9:45/mi
3:32:10
↑ 17↓ 861.7%
23M
10:03/mi
3:44:45
↑ 23↓ 630.6%
24M
9:40/mi
3:54:25
↓ 821.3%
40K· 24.85 mi
10:04/mi
4:03:01
↓ 200.3%
25.2M
10:52/mi
4:06:46
↑ 13↓ 160.2%
Finish· 26.22 mi
9:06/mi
4:16:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:47
Pace9:31 /mi
2nd Half
Distance13.11 mi
Time2:11:15
Pace10:01 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5728:289:1028:28
9:10
-
10K
6.21 mi11:55:5857:299:1529:01
9:20
+0:10
15K
9.32 mi12:26:171:27:489:2530:19
9:45
+0:25
20K
12.43 mi12:56:541:58:259:3230:37
9:51
+0:06
Half
13.11 mi13:03:162:04:479:316:22
9:20
-0:31
25K
15.53 mi13:27:262:28:579:3524:10
9:58
+0:38
30K
18.64 mi13:58:313:00:029:3931:05
10:00
+0:02
20M
20.00 mi14:12:153:13:469:4113:44
10:06
+0:06
21M
21.00 mi14:23:213:24:529:4511:06
11:06
+1:00
35K
21.75 mi14:30:393:32:109:457:18
9:45
-1:21
23M
23.00 mi14:43:143:44:459:4612:35
10:03
+0:18
24M
24.00 mi14:52:543:54:259:469:40
9:40
-0:23
40K
24.85 mi15:01:304:03:019:478:36
10:04
+0:24
25.2M
25.20 mi15:05:154:06:469:483:45
10:52
+0:48
Finish
26.22 mi15:14:314:16:029:469:16
9:06
-1:46

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

9:06 /mi

Average Pace

9:46 /mi

Slowest Pace

11:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:07

29% of race

Time at Steady Pace

2:48:04

66% of race

Time at Slower Pace

14:51

6% of race

Average Pace: 9:46 /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 mi11:26:5728:289:1028:28
9:10
#20683
10K
6.21 mi11:55:5857:299:1529:01
9:20
#20825
15K
9.32 mi12:26:171:27:489:2530:19
9:45
#20975
20K
12.43 mi12:56:541:58:259:3230:37
9:51
#20772
Half
13.11 mi13:03:162:04:479:316:22
9:20
#20708
25K
15.53 mi13:27:262:28:579:3524:10
9:58
#20390
30K
18.64 mi13:58:313:00:029:3931:05
10:00
#19841
20M
20.00 mi14:12:153:13:469:4113:44
10:06
#19620
21M
21.00 mi14:23:213:24:529:4511:06
11:06
#19417
35K
21.75 mi14:30:393:32:109:457:18
9:45
#19299
23M
23.00 mi14:43:143:44:459:4612:35
10:03
#19044
24M
24.00 mi14:52:543:54:259:469:40
9:40
#18863
40K
24.85 mi15:01:304:03:019:478:36
10:04
#18712
25.2M
25.20 mi15:05:154:06:469:483:45
10:52
#18634
Finish
26.22 mi15:14:314:16:029:469:16
9:06
#18493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi206838247824721332(Top 83%)8511(Top 78%)8511(Top 717%)
10K6.21 mi3.10 mi20825-1428294-478294-4720904(Top 82%)8312(Top 76%)8312(Top 700%)
15K9.32 mi3.11 mi20975-1508352-588352-5821332(Top 83%)8511(Top 78%)8511(Top 717%)
20K12.43 mi3.11 mi20772+2038234+1188234+11820195(Top 79%)7920(Top 73%)7920(Top 667%)
Half13.11 mi0.68 mi20708+648204+308204+3019539(Top 76%)7620(Top 70%)7620(Top 642%)
25K15.53 mi2.42 mi20390+3188048+1568048+15619038(Top 75%)7394(Top 68%)7394(Top 623%)
30K18.64 mi3.11 mi19841+5497807+2417807+24117365(Top 68%)6715(Top 61%)6715(Top 566%)
20M20.00 mi1.36 mi19620+2217730+777730+7716844(Top 66%)6642(Top 61%)6642(Top 560%)
21M21.00 mi1.00 mi19417+2037646+847646+8416614(Top 65%)6655(Top 61%)6655(Top 561%)
35K21.75 mi0.75 mi19299+1187598+487598+4816428(Top 64%)6582(Top 60%)6582(Top 555%)
23M23.00 mi1.25 mi19044+2557488+1107488+11015659(Top 61%)6241(Top 57%)6241(Top 526%)
24M24.00 mi1.00 mi18863+1817408+807408+8015173(Top 59%)6042(Top 55%)6042(Top 509%)
40K24.85 mi0.85 mi18712+1517353+557353+5515257(Top 60%)6142(Top 56%)6142(Top 517%)
25.2M25.20 mi0.35 mi18634+787321+327321+3214137(Top 55%)5646(Top 52%)5646(Top 476%)
Finish26.22 mi1.02 mi18493+1417271+507271+5014706(Top 58%)5831(Top 53%)5831(Top 491%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

21332

Females

8511

F50-54

8511

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

20904

Females

8312

F50-54

8312

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

21332

Females

8511

F50-54

8511

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20195

Females

7920

F50-54

7920

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

19539

Females

7620

F50-54

7620

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19038

Females

7394

F50-54

7394

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

17365

Females

6715

F50-54

6715

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

16844

Females

6642

F50-54

6642

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

16614

Females

6655

F50-54

6655

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

16428

Females

6582

F50-54

6582

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

15659

Females

6241

F50-54

6241

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15173

Females

6042

F50-54

6042

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15257

Females

6142

F50-54

6142

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14137

Females

5646

F50-54

5646

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

14706

Females

5831

F50-54

5831

Passing Analysis

Category:
Athletes Passed
2998
Passed By
808
Net Change
+2190
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20683
5K → 10K189331-142#20683#20825
10K → 15K153303-150#20825#20975
15K → 20K29390+203#20975#20772
20K → Half739+64#20772#20708
Half → 25K34123+318#20708#20390
25K → 30K55910+549#20390#19841
30K → 20M2298+221#19841#19620
20M → 21M21310+203#19620#19417
21M → 35K1235+118#19417#19299
35K → 23M2583+255#19299#19044
23M → 24M1843+181#19044#18863
24M → 40K1554+151#18863#18712
40K → 25.2M791+78#18712#18634
25.2M → Finish1498+141#18634#18493
TOTALS2998808+2190
📊

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