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BOSTON MARATHON 2024

Krista Kowalczyk

Bib: 9208•F

NY

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 15%
Gender (Female)
#0 / 10924
Top 3%
Division (F18-39)
#0 / 4660
Top 6%
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
7:04/mi
21:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:02/mi
43:50
↑ 79↓ 1380.4%
15K· 9.32 mi
6:56/mi
1:05:22
↑ 67↓ 78
20K· 12.43 mi
7:00/mi
1:27:06
↑ 106↓ 860.1%
Half· 13.11 mi
6:46/mi
1:31:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:01/mi
1:48:43
↑ 66↓ 880.2%
30K· 18.64 mi
7:12/mi
2:11:05
↑ 181↓ 1480.2%
20M
7:05/mi
2:20:43
↑ 64↓ 500.2%
21M
7:36/mi
2:28:19
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:33:31
↑ 17↓ 861.7%
23M
7:11/mi
2:42:31
↑ 23↓ 630.6%
24M
7:02/mi
2:49:33
↓ 821.3%
40K· 24.85 mi
7:16/mi
2:55:46
↓ 200.3%
25.2M
6:54/mi
2:58:09
↑ 13↓ 160.2%
Finish· 26.22 mi
6:54/mi
3:05:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:43
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:33:27
Pace7:08 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4321:587:0421:58
7:04
-
10K
6.21 mi11:09:3543:507:0321:52
7:02
-0:02
15K
9.32 mi11:31:071:05:227:0121:32
6:56
-0:06
20K
12.43 mi11:52:511:27:067:0121:44
7:00
+0:04
Half
13.11 mi11:57:281:31:437:004:37
6:46
-0:14
25K
15.53 mi12:14:281:48:437:0017:00
7:01
+0:15
30K
18.64 mi12:36:502:11:057:0222:22
7:12
+0:11
20M
20.00 mi12:46:282:20:437:029:38
7:05
-0:07
21M
21.00 mi12:54:042:28:197:047:36
7:36
+0:31
35K
21.75 mi12:59:162:33:317:045:12
6:57
-0:39
23M
23.00 mi13:08:162:42:317:049:00
7:11
+0:14
24M
24.00 mi13:15:182:49:337:047:02
7:02
-0:09
40K
24.85 mi13:21:312:55:467:046:13
7:16
+0:14
25.2M
25.20 mi13:23:542:58:097:042:23
6:54
-0:22
Finish
26.22 mi13:30:553:05:107:047:01
6:54
0:00

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

6:46 /mi

Average Pace

7:04 /mi

Slowest Pace

7:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:34

96% of race

Time at Steady Pace

7:36

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:04 /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 mi10:47:4321:587:0421:58
7:04
#7481
10K
6.21 mi11:09:3543:507:0321:52
7:02
#7170
15K
9.32 mi11:31:071:05:227:0121:32
6:56
#6684
20K
12.43 mi11:52:511:27:067:0121:44
7:00
#6233
Half
13.11 mi11:57:281:31:437:004:37
6:46
#6108
25K
15.53 mi12:14:281:48:437:0017:00
7:01
#5721
30K
18.64 mi12:36:502:11:057:0222:22
7:12
#5197
20M
20.00 mi12:46:282:20:437:029:38
7:05
#4884
21M
21.00 mi12:54:042:28:197:047:36
7:36
#4669
35K
21.75 mi12:59:162:33:317:045:12
6:57
#4535
23M
23.00 mi13:08:162:42:317:049:00
7:11
#4272
24M
24.00 mi13:15:182:49:337:047:02
7:02
#4084
40K
24.85 mi13:21:312:55:467:046:13
7:16
#3966
25.2M
25.20 mi13:23:542:58:097:042:23
6:54
#3837
Finish
26.22 mi13:30:553:05:107:047:01
6:54
#3712
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 mi74819869865799(Top 23%)549(Top 5%)549(Top 12%)
10K6.21 mi3.10 mi7170+311891+95891+956907(Top 27%)835(Top 8%)835(Top 18%)
15K9.32 mi3.11 mi6684+486771+120771+1205799(Top 23%)549(Top 5%)549(Top 12%)
20K12.43 mi3.11 mi6233+451660+111660+1115231(Top 20%)466(Top 4%)466(Top 10%)
Half13.11 mi0.68 mi6108+125630+30630+304339(Top 17%)306(Top 3%)306(Top 7%)
25K15.53 mi2.42 mi5721+387552+78552+784411(Top 17%)368(Top 3%)368(Top 8%)
30K18.64 mi3.11 mi5197+524478+74478+743773(Top 15%)332(Top 3%)332(Top 7%)
20M20.00 mi1.36 mi4884+313420+58420+582749(Top 11%)211(Top 2%)211(Top 5%)
21M21.00 mi1.00 mi4669+215401+19401+192830(Top 11%)264(Top 2%)264(Top 6%)
35K21.75 mi0.75 mi4535+134386+15386+152912(Top 11%)277(Top 3%)277(Top 6%)
23M23.00 mi1.25 mi4272+263367+19367+192556(Top 10%)250(Top 2%)250(Top 5%)
24M24.00 mi1.00 mi4084+188353+14353+142461(Top 10%)268(Top 2%)268(Top 6%)
40K24.85 mi0.85 mi3966+118344+9344+92746(Top 11%)346(Top 3%)346(Top 7%)
25.2M25.20 mi0.35 mi3837+129322+22322+22449(Top 2%)36(Top 0.3%)36(Top 0.8%)
Finish26.22 mi1.02 mi3712+125313+9313+92702(Top 11%)393(Top 4%)393(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

5799

Females

549

F18-39

549

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

6907

Females

835

F18-39

835

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

5799

Females

549

F18-39

549

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5231

Females

466

F18-39

466

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4339

Females

306

F18-39

306

Half→25K

13.1 - 15.5 mi

Top 17%
×4story building
+66ft-88ft

Overall

4411

Females

368

F18-39

368

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

3773

Females

332

F18-39

332

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

2749

Females

211

F18-39

211

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2830

Females

264

F18-39

264

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

2912

Females

277

F18-39

277

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2556

Females

250

F18-39

250

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2461

Females

268

F18-39

268

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2746

Females

346

F18-39

346

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

449

Females

36

F18-39

36

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

2702

Females

393

F18-39

393

Passing Analysis

Category:
Athletes Passed
3919
Passed By
150
Net Change
+3769
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7481
5K → 10K37362+311#7481#7170
10K → 15K50115+486#7170#6684
15K → 20K4609+451#6684#6233
20K → Half1261+125#6233#6108
Half → 25K39811+387#6108#5721
25K → 30K53511+524#5721#5197
30K → 20M3152+313#5197#4884
20M → 21M2205+215#4884#4669
21M → 35K1417+134#4669#4535
35K → 23M2663+263#4535#4272
23M → 24M1924+188#4272#4084
24M → 40K1268+118#4084#3966
40K → 25.2M1290+129#3966#3837
25.2M → Finish13712+125#3837#3712
TOTALS3919150+3769
📊

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