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BOSTON MARATHON 2024

Jessica Szczepanski

Bib: 9030•F

AZ

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 35%
Gender (Female)
#0 / 10924
Top 20%
Division (F18-39)
#0 / 4660
Top 35%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:15
Rank: #10627
Start → 5K
23:15 | 7:29/mi
10K· 6.21 mi
46:00
Rank: #9662 (+965)
5K → 10K
22:45 | 7:19/mi
15K· 9.32 mi
1:08:57
Rank: #9324 (+338)
10K → 15K
22:57 | 7:23/mi
20K· 12.43 mi
1:31:58
Rank: #8862 (+462)
15K → 20K
23:01 | 7:25/mi
Half· 13.11 mi
1:36:54
Rank: #8766 (+96)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:55:36
Rank: #8658 (+108)
Half → 25K
18:42 | 7:43/mi
30K· 18.64 mi
2:21:33
Rank: #8831 (-173)
25K → 30K
25:57 | 8:21/mi
20M
2:34:01
Rank: #9101 (-270)
30K → 20M
12:28 | 9:10/mi
21M
2:43:19
Rank: #9074 (+27)
20M → 21M
9:18 | 9:18/mi
35K· 21.75 mi
2:49:38
Rank: #9089 (-15)
21M → 35K
6:19 | 8:27/mi
23M
3:00:28
Rank: #9009 (+80)
35K → 23M
10:50 | 8:39/mi
24M
3:09:06
Rank: #9054 (-45)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:16:36
Rank: #9066 (-12)
24M → 40K
7:30 | 8:46/mi
25.2M
3:19:56
Rank: #9062 (+4)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:28:12
Rank: #9034 (+28)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:54
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:51:18
Pace8:29 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2323:157:2923:15
7:29
-
10K
6.21 mi11:16:0846:007:2422:45
7:19
-0:10
15K
9.32 mi11:39:051:08:577:2422:57
7:23
+0:04
20K
12.43 mi12:02:061:31:587:2423:01
7:25
+0:02
Half
13.11 mi12:07:021:36:547:234:56
7:14
-0:11
25K
15.53 mi12:25:441:55:367:2618:42
7:43
+0:29
30K
18.64 mi12:51:412:21:337:3625:57
8:21
+0:38
20M
20.00 mi13:04:092:34:017:4212:28
9:10
+0:49
21M
21.00 mi13:13:272:43:197:479:18
9:18
+0:08
35K
21.75 mi13:19:462:49:387:486:19
8:27
-0:51
23M
23.00 mi13:30:363:00:287:5110:50
8:39
+0:12
24M
24.00 mi13:39:143:09:067:538:38
8:38
-0:01
40K
24.85 mi13:46:443:16:367:557:30
8:46
+0:08
25.2M
25.20 mi13:50:043:19:567:563:20
9:40
+0:54
Finish
26.22 mi13:58:203:28:127:578:16
8:07
-1:33

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

7:14 /mi

Average Pace

7:57 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:36

56% of race

Time at Steady Pace

1:00:00

29% of race

Time at Slower Pace

32:36

16% of race

Average Pace: 7:56 /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 mi10:53:2323:157:2923:15
7:29
#10627
10K
6.21 mi11:16:0846:007:2422:45
7:19
#9662
15K
9.32 mi11:39:051:08:577:2422:57
7:23
#9324
20K
12.43 mi12:02:061:31:587:2423:01
7:25
#8862
Half
13.11 mi12:07:021:36:547:234:56
7:14
#8766
25K
15.53 mi12:25:441:55:367:2618:42
7:43
#8658
30K
18.64 mi12:51:412:21:337:3625:57
8:21
#8831
20M
20.00 mi13:04:092:34:017:4212:28
9:10
#9101
21M
21.00 mi13:13:272:43:197:479:18
9:18
#9074
35K
21.75 mi13:19:462:49:387:486:19
8:27
#9089
23M
23.00 mi13:30:363:00:287:5110:50
8:39
#9009
24M
24.00 mi13:39:143:09:067:538:38
8:38
#9054
40K
24.85 mi13:46:443:16:367:557:30
8:46
#9066
25.2M
25.20 mi13:50:043:19:567:563:20
9:40
#9062
Finish
26.22 mi13:58:203:28:127:578:16
8:07
#9034
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10627235823588807(Top 34%)1610(Top 15%)1610(Top 35%)
10K6.21 mi3.10 mi9662+9651897+4611897+4618861(Top 35%)1580(Top 14%)1580(Top 34%)
15K9.32 mi3.11 mi9324+3381770+1271770+1278807(Top 34%)1610(Top 15%)1610(Top 35%)
20K12.43 mi3.11 mi8862+4621609+1611609+1617708(Top 30%)1270(Top 12%)1270(Top 27%)
Half13.11 mi0.68 mi8766+961573+361573+367252(Top 28%)1100(Top 10%)1100(Top 24%)
25K15.53 mi2.42 mi8658+1081569+41569+48392(Top 33%)1726(Top 16%)1726(Top 37%)
30K18.64 mi3.11 mi8831-1731735-1661735-1669851(Top 39%)2632(Top 24%)2632(Top 56%)
20M20.00 mi1.36 mi9101-2701925-1901925-19012994(Top 51%)4568(Top 42%)4568(Top 98%)
21M21.00 mi1.00 mi9074+271977-521977-529946(Top 39%)3196(Top 29%)3196(Top 69%)
35K21.75 mi0.75 mi9089-152009-322009-3210409(Top 41%)3434(Top 31%)3434(Top 74%)
23M23.00 mi1.25 mi9009+802042-332042-339314(Top 36%)3033(Top 28%)3033(Top 65%)
24M24.00 mi1.00 mi9054-452108-662108-6610221(Top 40%)3551(Top 33%)3551(Top 76%)
40K24.85 mi0.85 mi9066-122162-542162-549739(Top 38%)3433(Top 31%)3433(Top 74%)
25.2M25.20 mi0.35 mi9062+42180-182180-189463(Top 37%)3366(Top 31%)3366(Top 72%)
Finish26.22 mi1.02 mi9034+282212-322212-329266(Top 36%)3166(Top 29%)3166(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

8807

Females

1610

F18-39

1610

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

8861

Females

1580

F18-39

1580

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

8807

Females

1610

F18-39

1610

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7708

Females

1270

F18-39

1270

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7252

Females

1100

F18-39

1100

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8392

Females

1726

F18-39

1726

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

9851

Females

2632

F18-39

2632

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

12994

Females

4568

F18-39

4568

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

9946

Females

3196

F18-39

3196

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10409

Females

3434

F18-39

3434

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

9314

Females

3033

F18-39

3033

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10221

Females

3551

F18-39

3551

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

9739

Females

3433

F18-39

3433

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9463

Females

3366

F18-39

3366

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9266

Females

3166

F18-39

3166

Passing Analysis

Category:
Athletes Passed
3173*
Passed By
1580
Net Change
+1593
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10627
5K → 10K988*23+965#10627#9662
10K → 15K38547+338#9662#9324
15K → 20K48018+462#9324#8862
20K → Half1026+96#8862#8766
Half → 25K240132+108#8766#8658
25K → 30K213386-173#8658#8831
30K → 20M62332-270#8831#9101
20M → 21M149122+27#9101#9074
21M → 35K6681-15#9074#9089
35K → 23M186106+80#9089#9009
23M → 24M68113-45#9009#9054
24M → 40K95107-12#9054#9066
40K → 25.2M3935+4#9066#9062
25.2M → Finish10072+28#9062#9034
TOTALS3173*1580+1593

* 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