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BOSTON MARATHON 2024

Catherine O'brien

Bib: 13311•F

VA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 18%
Gender (Female)
#0 / 10924
Top 5%
Division (F18-39)
#0 / 4660
Top 10%
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
7:21/mi
22:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
45:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:08:05
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:30:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:01/mi
1:35:12
↑ 19↓ 370.5%
25K· 15.53 mi
7:04/mi
1:52:21
↑ 66↓ 880.2%
30K· 18.64 mi
7:20/mi
2:15:07
↑ 181↓ 1480.2%
20M
7:07/mi
2:24:47
↑ 64↓ 500.2%
21M
7:19/mi
2:32:06
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:37:18
↑ 17↓ 861.7%
23M
7:26/mi
2:46:37
↑ 23↓ 630.6%
24M
7:22/mi
2:53:59
↓ 821.3%
40K· 24.85 mi
7:24/mi
3:00:19
↓ 200.3%
25.2M
8:19/mi
3:03:11
↑ 13↓ 160.2%
Finish· 26.22 mi
6:57/mi
3:10:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:35:12
Pace7:16 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:35:04
Pace7:15 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4922:517:2122:51
7:21
-
10K
6.21 mi11:15:3445:367:2022:45
7:19
-0:02
15K
9.32 mi11:38:031:08:057:1822:29
7:14
-0:05
20K
12.43 mi12:00:231:30:257:1722:20
7:11
-0:03
Half
13.11 mi12:05:101:35:127:164:47
7:01
-0:10
25K
15.53 mi12:22:191:52:217:1417:09
7:04
+0:03
30K
18.64 mi12:45:052:15:077:1522:46
7:20
+0:16
20M
20.00 mi12:54:452:24:477:149:40
7:07
-0:13
21M
21.00 mi13:02:042:32:067:157:19
7:19
+0:12
35K
21.75 mi13:07:162:37:187:145:12
6:57
-0:22
23M
23.00 mi13:16:352:46:377:159:19
7:26
+0:29
24M
24.00 mi13:23:572:53:597:157:22
7:22
-0:04
40K
24.85 mi13:30:173:00:197:156:20
7:24
+0:02
25.2M
25.20 mi13:33:093:03:117:162:52
8:19
+0:55
Finish
26.22 mi13:40:143:10:167:167:05
6:57
-1:22

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

6:57 /mi

Average Pace

7:16 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:24

98% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

2:52

2% of race

Average Pace: 7:15 /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 mi10:52:4922:517:2122:51
7:21
#9600
10K
6.21 mi11:15:3445:367:2022:45
7:19
#9187
15K
9.32 mi11:38:031:08:057:1822:29
7:14
#8647
20K
12.43 mi12:00:231:30:257:1722:20
7:11
#7946
Half
13.11 mi12:05:101:35:127:164:47
7:01
#7817
25K
15.53 mi12:22:191:52:217:1417:09
7:04
#7169
30K
18.64 mi12:45:052:15:077:1522:46
7:20
#6467
20M
20.00 mi12:54:452:24:477:149:40
7:07
#6045
21M
21.00 mi13:02:042:32:067:157:19
7:19
#5638
35K
21.75 mi13:07:162:37:187:145:12
6:57
#5447
23M
23.00 mi13:16:352:46:377:159:19
7:26
#5195
24M
24.00 mi13:23:572:53:597:157:22
7:22
#5044
40K
24.85 mi13:30:173:00:197:156:20
7:24
#4867
25.2M
25.20 mi13:33:093:03:117:162:52
8:19
#4828
Finish
26.22 mi13:40:143:10:167:167:05
6:57
#4677
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9600183718377732(Top 30%)1153(Top 11%)1153(Top 25%)
10K6.21 mi3.10 mi9187+4131692+1451692+1458848(Top 35%)1567(Top 14%)1567(Top 34%)
15K9.32 mi3.11 mi8647+5401478+2141478+2147732(Top 30%)1153(Top 11%)1153(Top 25%)
20K12.43 mi3.11 mi7946+7011223+2551223+2556318(Top 25%)768(Top 7%)768(Top 16%)
Half13.11 mi0.68 mi7817+1291179+441179+445874(Top 23%)619(Top 6%)619(Top 13%)
25K15.53 mi2.42 mi7169+648990+189990+1894715(Top 18%)443(Top 4%)443(Top 10%)
30K18.64 mi3.11 mi6467+702821+169821+1694344(Top 17%)465(Top 4%)465(Top 10%)
20M20.00 mi1.36 mi6045+422740+81740+812832(Top 11%)224(Top 2%)224(Top 5%)
21M21.00 mi1.00 mi5638+407652+88652+881938(Top 8%)136(Top 1%)136(Top 3%)
35K21.75 mi0.75 mi5447+191621+31621+312916(Top 11%)281(Top 3%)281(Top 6%)
23M23.00 mi1.25 mi5195+252582+39582+393419(Top 13%)424(Top 4%)424(Top 9%)
24M24.00 mi1.00 mi5044+151565+17565+173625(Top 14%)546(Top 5%)546(Top 12%)
40K24.85 mi0.85 mi4867+177543+22543+223184(Top 12%)488(Top 4%)488(Top 10%)
25.2M25.20 mi0.35 mi4828+39547-4547-43792(Top 15%)742(Top 7%)742(Top 16%)
Finish26.22 mi1.02 mi4677+151532+15532+152969(Top 12%)462(Top 4%)462(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

7732

Females

1153

F18-39

1153

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

8848

Females

1567

F18-39

1567

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

7732

Females

1153

F18-39

1153

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

6318

Females

768

F18-39

768

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

5874

Females

619

F18-39

619

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

4715

Females

443

F18-39

443

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4344

Females

465

F18-39

465

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

2832

Females

224

F18-39

224

20M→21M

20.0 - 21.0 mi

Top 8%
×8story building
+106ft-24ft

Overall

1938

Females

136

F18-39

136

21M→35K

21.0 - 21.8 mi

Top 11%
×7story building
+17ft-86ft

Overall

2916

Females

281

F18-39

281

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3419

Females

424

F18-39

424

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+12ft-82ft

Overall

3625

Females

546

F18-39

546

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3184

Females

488

F18-39

488

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3792

Females

742

F18-39

742

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

2969

Females

462

F18-39

462

Passing Analysis

Category:
Athletes Passed
5055
Passed By
132
Net Change
+4923
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9600
5K → 10K49279+413#9600#9187
10K → 15K5488+540#9187#8647
15K → 20K7032+701#8647#7946
20K → Half1290+129#7946#7817
Half → 25K6480+648#7817#7169
25K → 30K7097+702#7169#6467
30K → 20M4220+422#6467#6045
20M → 21M4070+407#6045#5638
21M → 35K1910+191#5638#5447
35K → 23M2608+252#5447#5195
23M → 24M1598+151#5195#5044
24M → 40K1825+177#5044#4867
40K → 25.2M5112+39#4867#4828
25.2M → Finish1543+151#4828#4677
TOTALS5055132+4923
📊

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