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BOSTON MARATHON 2024

Kelly Olzenak

Bib: 16431•F

CO

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
7:31/mi
23:22
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
46:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:10:16
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:33:43
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:38:50
↑ 19↓ 370.5%
25K· 15.53 mi
8:18/mi
1:58:57
↑ 66↓ 880.2%
30K· 18.64 mi
8:49/mi
2:26:22
↑ 181↓ 1480.2%
20M
8:34/mi
2:38:00
↑ 64↓ 500.2%
21M
8:38/mi
2:46:38
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:52:13
↑ 17↓ 861.7%
23M
7:40/mi
3:01:49
↑ 23↓ 630.6%
24M
7:30/mi
3:09:19
↓ 821.3%
40K· 24.85 mi
7:40/mi
3:15:52
↓ 200.3%
25.2M
8:25/mi
3:18:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:26:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:50
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:47:30
Pace8:12 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2823:227:3123:22
7:31
-
10K
6.21 mi11:36:5346:477:3223:25
7:32
+0:01
15K
9.32 mi12:00:221:10:167:3223:29
7:34
+0:02
20K
12.43 mi12:23:491:33:437:3223:27
7:33
-0:01
Half
13.11 mi12:28:561:38:507:325:07
7:30
-0:03
25K
15.53 mi12:49:031:58:577:3920:07
8:18
+0:48
30K
18.64 mi13:16:282:26:227:5127:25
8:49
+0:31
20M
20.00 mi13:28:062:38:007:5411:38
8:34
-0:15
21M
21.00 mi13:36:442:46:387:568:38
8:38
+0:04
35K
21.75 mi13:42:192:52:137:555:35
7:28
-1:10
23M
23.00 mi13:51:553:01:497:549:36
7:40
+0:12
24M
24.00 mi13:59:253:09:197:537:30
7:30
-0:10
40K
24.85 mi14:05:583:15:527:536:33
7:40
+0:10
25.2M
25.20 mi14:08:523:18:467:532:54
8:25
+0:45
Finish
26.22 mi14:16:263:26:207:537:34
7:26
-0:59

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

7:26 /mi

Average Pace

7:53 /mi

Slowest Pace

8:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:38

66% of race

Time at Steady Pace

43:17

21% of race

Time at Slower Pace

27:25

13% 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 mi11:13:2823:227:3123:22
7:31
#10957
10K
6.21 mi11:36:5346:477:3223:25
7:32
#10728
15K
9.32 mi12:00:221:10:167:3223:29
7:34
#10500
20K
12.43 mi12:23:491:33:437:3223:27
7:33
#9953
Half
13.11 mi12:28:561:38:507:325:07
7:30
#9893
25K
15.53 mi12:49:031:58:577:3920:07
8:18
#10198
30K
18.64 mi13:16:282:26:227:5127:25
8:49
#10631
20M
20.00 mi13:28:062:38:007:5411:38
8:34
#10502
21M
21.00 mi13:36:442:46:387:568:38
8:38
#10185
35K
21.75 mi13:42:192:52:137:555:35
7:28
#9929
23M
23.00 mi13:51:553:01:497:549:36
7:40
#9444
24M
24.00 mi13:59:253:09:197:537:30
7:30
#9119
40K
24.85 mi14:05:583:15:527:536:33
7:40
#8842
25.2M
25.20 mi14:08:523:18:467:532:54
8:25
#8697
Finish
26.22 mi14:16:263:26:207:537:34
7:26
#8506
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi109572537253710113(Top 40%)2232(Top 20%)2232(Top 48%)
10K6.21 mi3.10 mi10728+2292459+782459+7810583(Top 41%)2408(Top 22%)2408(Top 52%)
15K9.32 mi3.11 mi10500+2282352+1072352+10710113(Top 40%)2232(Top 20%)2232(Top 48%)
20K12.43 mi3.11 mi9953+5472126+2262126+2268735(Top 34%)1693(Top 15%)1693(Top 36%)
Half13.11 mi0.68 mi9893+602097+292097+299171(Top 36%)1903(Top 17%)1903(Top 41%)
25K15.53 mi2.42 mi10198-3052309-2122309-21211960(Top 47%)3491(Top 32%)3491(Top 75%)
30K18.64 mi3.11 mi10631-4332634-3252634-32512321(Top 48%)3896(Top 36%)3896(Top 84%)
20M20.00 mi1.36 mi10502+1292628+62628+69776(Top 38%)2831(Top 26%)2831(Top 61%)
21M21.00 mi1.00 mi10185+3172525+1032525+1036861(Top 27%)1652(Top 15%)1652(Top 35%)
35K21.75 mi0.75 mi9929+2562432+932432+934943(Top 19%)870(Top 8%)870(Top 19%)
23M23.00 mi1.25 mi9444+4852257+1752257+1754279(Top 17%)722(Top 7%)722(Top 15%)
24M24.00 mi1.00 mi9119+3252140+1172140+1174173(Top 16%)760(Top 7%)760(Top 16%)
40K24.85 mi0.85 mi8842+2772047+932047+934214(Top 16%)875(Top 8%)875(Top 19%)
25.2M25.20 mi0.35 mi8697+1452011+362011+364177(Top 16%)914(Top 8%)914(Top 20%)
Finish26.22 mi1.02 mi8506+1911968+431968+435229(Top 20%)1289(Top 12%)1289(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10113

Females

2232

F18-39

2232

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

10583

Females

2408

F18-39

2408

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10113

Females

2232

F18-39

2232

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

8735

Females

1693

F18-39

1693

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9171

Females

1903

F18-39

1903

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

11960

Females

3491

F18-39

3491

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12321

Females

3896

F18-39

3896

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

9776

Females

2831

F18-39

2831

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

6861

Females

1652

F18-39

1652

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

4943

Females

870

F18-39

870

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4279

Females

722

F18-39

722

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4173

Females

760

F18-39

760

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4214

Females

875

F18-39

875

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4177

Females

914

F18-39

914

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5229

Females

1289

F18-39

1289

Passing Analysis

Category:
Athletes Passed
3883*
Passed By
1429
Net Change
+2451
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10957
5K → 10K401172+229#10957#10728
10K → 15K333105+228#10728#10500
15K → 20K561*14+547#10500#9953
20K → Half7414+60#9953#9893
Half → 25K126429-305#9893#10198
25K → 30K166598-433#10198#10631
30K → 20M20374+129#10631#10502
20M → 21M3258+317#10502#10185
21M → 35K256*0+256#10185#9929
35K → 23M485*0+485#9929#9444
23M → 24M326*1+325#9444#9119
24M → 40K2781+277#9119#8842
40K → 25.2M1472+145#8842#8697
25.2M → Finish20211+191#8697#8506
TOTALS3883*1429+2451

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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