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BOSTON MARATHON 2024

Kristie Zajaczkowski

Bib: 16426•F

OH

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 50%
Division (F18-39)
#0 / 4660
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
7:29/mi
23:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
47:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:07/mi
1:12:27
↑ 67↓ 78
20K· 12.43 mi
8:50/mi
1:39:53
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
1:46:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:51/mi
2:09:56
↑ 66↓ 880.2%
30K· 18.64 mi
9:56/mi
2:40:49
↑ 181↓ 1480.2%
20M
10:05/mi
2:54:31
↑ 64↓ 500.2%
21M
10:05/mi
3:04:36
↑ 106↓ 241.6%
35K· 21.75 mi
9:17/mi
3:11:33
↑ 17↓ 861.7%
23M
10:12/mi
3:24:19
↑ 23↓ 630.6%
24M
9:30/mi
3:33:49
↓ 821.3%
40K· 24.85 mi
9:14/mi
3:41:43
↓ 200.3%
25.2M
10:09/mi
3:45:13
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
3:54:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:04
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time2:08:08
Pace9:46 /mi
📊Positive Split: 20.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2423:147:2923:14
7:29
-
10K
6.21 mi11:37:2547:157:3624:01
7:44
+0:15
15K
9.32 mi12:02:371:12:277:4625:12
8:07
+0:23
20K
12.43 mi12:30:031:39:538:0227:26
8:50
+0:43
Half
13.11 mi12:36:141:46:048:056:11
9:04
+0:14
25K
15.53 mi13:00:062:09:568:2223:52
9:51
+0:47
30K
18.64 mi13:30:592:40:498:3830:53
9:56
+0:05
20M
20.00 mi13:44:412:54:318:4413:42
10:05
+0:09
21M
21.00 mi13:54:463:04:368:4710:05
10:05
0:00
35K
21.75 mi14:01:433:11:338:486:57
9:17
-0:48
23M
23.00 mi14:14:293:24:198:5312:46
10:12
+0:55
24M
24.00 mi14:23:593:33:498:559:30
9:30
-0:42
40K
24.85 mi14:31:533:41:438:557:54
9:14
-0:16
25.2M
25.20 mi14:35:233:45:138:563:30
10:09
+0:55
Finish
26.22 mi14:44:223:54:128:568:59
8:49
-1:20

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

7:29 /mi

Average Pace

8:56 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:52

46% of race

Time at Steady Pace

30:32

13% of race

Time at Slower Pace

1:34:48

40% of race

Average Pace: 8:56 /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 mi11:13:2423:147:2923:14
7:29
#10587
10K
6.21 mi11:37:2547:157:3624:01
7:44
#11324
15K
9.32 mi12:02:371:12:277:4625:12
8:07
#12299
20K
12.43 mi12:30:031:39:538:0227:26
8:50
#13687
Half
13.11 mi12:36:141:46:048:056:11
9:04
#13966
25K
15.53 mi13:00:062:09:568:2223:52
9:51
#15012
30K
18.64 mi13:30:592:40:498:3830:53
9:56
#15488
20M
20.00 mi13:44:412:54:318:4413:42
10:05
#15636
21M
21.00 mi13:54:463:04:368:4710:05
10:05
#15476
35K
21.75 mi14:01:433:11:338:486:57
9:17
#15463
23M
23.00 mi14:14:293:24:198:5312:46
10:12
#15538
24M
24.00 mi14:23:593:33:498:559:30
9:30
#15500
40K
24.85 mi14:31:533:41:438:557:54
9:14
#15349
25.2M
25.20 mi14:35:233:45:138:563:30
10:09
#15250
Finish
26.22 mi14:44:223:54:128:568:59
8:49
#15145
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi105872341234114177(Top 55%)4476(Top 41%)4476(Top 96%)
10K6.21 mi3.10 mi11324-7372786-4452786-44512111(Top 47%)3255(Top 30%)3255(Top 70%)
15K9.32 mi3.11 mi12299-9753363-5773363-57714177(Top 55%)4476(Top 41%)4476(Top 96%)
20K12.43 mi3.11 mi13687-13884175-8124175-81216562(Top 65%)5932(Top 54%)5932(Top 127%)
Half13.11 mi0.68 mi13966-2794345-1704345-17018552(Top 73%)7072(Top 65%)7072(Top 152%)
25K15.53 mi2.42 mi15012-10465006-6615006-66118683(Top 73%)7206(Top 66%)7206(Top 155%)
30K18.64 mi3.11 mi15488-4765373-3675373-36717164(Top 67%)6602(Top 60%)6602(Top 142%)
20M20.00 mi1.36 mi15636-1485498-1255498-12516776(Top 66%)6602(Top 60%)6602(Top 142%)
21M21.00 mi1.00 mi15476+1605444+545444+5413283(Top 52%)4947(Top 45%)4947(Top 106%)
35K21.75 mi0.75 mi15463+135470-265470-2614680(Top 57%)5683(Top 52%)5683(Top 122%)
23M23.00 mi1.25 mi15538-755562-925562-9216106(Top 63%)6449(Top 59%)6449(Top 138%)
24M24.00 mi1.00 mi15500+385575-135575-1314485(Top 57%)5696(Top 52%)5696(Top 122%)
40K24.85 mi0.85 mi15349+1515521+545521+5411996(Top 47%)4543(Top 42%)4543(Top 97%)
25.2M25.20 mi0.35 mi15250+995478+435478+4311595(Top 45%)4399(Top 40%)4399(Top 94%)
Finish26.22 mi1.02 mi15145+1055451+275451+2713277(Top 52%)5108(Top 47%)5108(Top 110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14177

Females

4476

F18-39

4476

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12111

Females

3255

F18-39

3255

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14177

Females

4476

F18-39

4476

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

16562

Females

5932

F18-39

5932

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

18552

Females

7072

F18-39

7072

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

18683

Females

7206

F18-39

7206

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17164

Females

6602

F18-39

6602

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

16776

Females

6602

F18-39

6602

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13283

Females

4947

F18-39

4947

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

14680

Females

5683

F18-39

5683

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16106

Females

6449

F18-39

6449

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

14485

Females

5696

F18-39

5696

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

11996

Females

4543

F18-39

4543

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11595

Females

4399

F18-39

4399

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13277

Females

5108

F18-39

5108

Passing Analysis

Category:
Athletes Passed
1340
Passed By
5898
Net Change
-4558
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10587
5K → 10K89826-737#10587#11324
10K → 15K531028-975#11324#12299
15K → 20K471435-1388#12299#13687
20K → Half7286-279#13687#13966
Half → 25K541100-1046#13966#15012
25K → 30K131607-476#15012#15488
30K → 20M74222-148#15488#15636
20M → 21M20040+160#15636#15476
21M → 35K8168+13#15476#15463
35K → 23M100175-75#15463#15538
23M → 24M10163+38#15538#15500
24M → 40K16312+151#15500#15349
40K → 25.2M1089+99#15349#15250
25.2M → Finish13227+105#15250#15145
TOTALS13405898-4558
📊

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