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BOSTON MARATHON 2024

Katherine Brennan

Bib: 11837•F

WI

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 43%
Gender (Female)
#0 / 10924
Top 29%
Division (F18-39)
#0 / 4660
Top 46%
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
7:58/mi
24:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
48:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:37/mi
1:12:30
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:36:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:42:04
↑ 19↓ 370.5%
25K· 15.53 mi
8:06/mi
2:01:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:28:01
↑ 181↓ 1480.2%
20M
8:43/mi
2:39:52
↑ 64↓ 500.2%
21M
9:22/mi
2:49:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
2:55:32
↑ 17↓ 861.7%
23M
9:29/mi
3:07:24
↑ 23↓ 630.6%
24M
9:03/mi
3:16:27
↓ 821.3%
40K· 24.85 mi
9:12/mi
3:24:19
↓ 200.3%
25.2M
9:31/mi
3:27:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:35:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:04
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:53:40
Pace8:40 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4024:467:5824:46
7:58
-
10K
6.21 mi11:16:4548:517:5224:05
7:45
-0:13
15K
9.32 mi11:40:241:12:307:4723:39
7:37
-0:08
20K
12.43 mi12:04:491:36:557:4824:25
7:52
+0:15
Half
13.11 mi12:09:581:42:047:475:09
7:33
-0:19
25K
15.53 mi12:29:362:01:427:5019:38
8:06
+0:33
30K
18.64 mi12:55:552:28:017:5626:19
8:28
+0:22
20M
20.00 mi13:07:462:39:528:0011:51
8:43
+0:15
21M
21.00 mi13:17:082:49:148:049:22
9:22
+0:39
35K
21.75 mi13:23:262:55:328:046:18
8:25
-0:57
23M
23.00 mi13:35:183:07:248:0911:52
9:29
+1:04
24M
24.00 mi13:44:213:16:278:119:03
9:03
-0:26
40K
24.85 mi13:52:133:24:198:137:52
9:12
+0:09
25.2M
25.20 mi13:55:303:27:368:143:17
9:31
+0:19
Finish
26.22 mi14:03:383:35:448:148:08
7:59
-1:32

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

7:33 /mi

Average Pace

8:14 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:12

51% of race

Time at Steady Pace

1:04:06

30% of race

Time at Slower Pace

41:26

19% of race

Average Pace: 8:14 /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 mi10:52:4024:467:5824:46
7:58
#14456
10K
6.21 mi11:16:4548:517:5224:05
7:45
#13332
15K
9.32 mi11:40:241:12:307:4723:39
7:37
#12344
20K
12.43 mi12:04:491:36:557:4824:25
7:52
#11889
Half
13.11 mi12:09:581:42:047:475:09
7:33
#11753
25K
15.53 mi12:29:362:01:427:5019:38
8:06
#11523
30K
18.64 mi12:55:552:28:017:5626:19
8:28
#11230
20M
20.00 mi13:07:462:39:528:0011:51
8:43
#11130
21M
21.00 mi13:17:082:49:148:049:22
9:22
#11019
35K
21.75 mi13:23:262:55:328:046:18
8:25
#10950
23M
23.00 mi13:35:183:07:248:0911:52
9:29
#11115
24M
24.00 mi13:44:213:16:278:119:03
9:03
#11132
40K
24.85 mi13:52:133:24:198:137:52
9:12
#11123
25.2M
25.20 mi13:55:303:27:368:143:17
9:31
#11068
Finish
26.22 mi14:03:383:35:448:148:08
7:59
#10935
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi144564594459410536(Top 41%)2450(Top 22%)2450(Top 53%)
10K6.21 mi3.10 mi13332+11243920+6743920+67412265(Top 48%)3329(Top 30%)3329(Top 71%)
15K9.32 mi3.11 mi12344+9883382+5383382+53810536(Top 41%)2450(Top 22%)2450(Top 53%)
20K12.43 mi3.11 mi11889+4553151+2313151+23110834(Top 42%)2729(Top 25%)2729(Top 59%)
Half13.11 mi0.68 mi11753+1363088+633088+639572(Top 37%)2106(Top 19%)2106(Top 45%)
25K15.53 mi2.42 mi11523+2302993+952993+9510805(Top 42%)2872(Top 26%)2872(Top 62%)
30K18.64 mi3.11 mi11230+2932945+482945+4810508(Top 41%)2940(Top 27%)2940(Top 63%)
20M20.00 mi1.36 mi11130+1002952-72952-710662(Top 42%)3290(Top 30%)3290(Top 71%)
21M21.00 mi1.00 mi11019+1112942+102942+1010263(Top 40%)3361(Top 31%)3361(Top 72%)
35K21.75 mi0.75 mi10950+692951-92951-910297(Top 40%)3381(Top 31%)3381(Top 73%)
23M23.00 mi1.25 mi11115-1653097-1463097-14613422(Top 53%)5112(Top 47%)5112(Top 110%)
24M24.00 mi1.00 mi11132-173152-553152-5512422(Top 49%)4621(Top 42%)4621(Top 99%)
40K24.85 mi0.85 mi11123+93201-493201-4911806(Top 46%)4433(Top 41%)4433(Top 95%)
25.2M25.20 mi0.35 mi11068+553191+103191+108875(Top 35%)3093(Top 28%)3093(Top 66%)
Finish26.22 mi1.02 mi10935+1333161+303161+308446(Top 33%)2799(Top 26%)2799(Top 60%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10536

Females

2450

F18-39

2450

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12265

Females

3329

F18-39

3329

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10536

Females

2450

F18-39

2450

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

10834

Females

2729

F18-39

2729

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9572

Females

2106

F18-39

2106

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

10805

Females

2872

F18-39

2872

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10508

Females

2940

F18-39

2940

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

10662

Females

3290

F18-39

3290

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10263

Females

3361

F18-39

3361

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10297

Females

3381

F18-39

3381

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

13422

Females

5112

F18-39

5112

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12422

Females

4621

F18-39

4621

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

11806

Females

4433

F18-39

4433

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

8875

Females

3093

F18-39

3093

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8446

Females

2799

F18-39

2799

Passing Analysis

Category:
Athletes Passed
4573
Passed By
1052
Net Change
+3521
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14456
5K → 10K115329+1124#14456#13332
10K → 15K9946+988#13332#12344
15K → 20K49540+455#12344#11889
20K → Half1371+136#11889#11753
Half → 25K32292+230#11753#11523
25K → 30K437144+293#11523#11230
30K → 20M19595+100#11230#11130
20M → 21M20392+111#11130#11019
21M → 35K11950+69#11019#10950
35K → 23M92257-165#10950#11115
23M → 24M97114-17#11115#11132
24M → 40K10798+9#11132#11123
40K → 25.2M6813+55#11123#11068
25.2M → Finish15421+133#11068#10935
TOTALS45731052+3521
📊

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