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BOSTON MARATHON 2024

Katherine Efird

Bib: 13134•F

NC

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 28%
Gender (Female)
#0 / 10924
Top 12%
Division (F18-39)
#0 / 4660
Top 22%
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
7:21/mi
45:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:25
↑ 67↓ 78
20K· 12.43 mi
7:18/mi
1:31:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:36:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:22/mi
1:53:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:17:52
↑ 181↓ 1480.2%
20M
7:58/mi
2:28:42
↑ 64↓ 500.2%
21M
8:45/mi
2:37:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:43:20
↑ 17↓ 861.7%
23M
8:16/mi
2:53:41
↑ 23↓ 630.6%
24M
8:07/mi
3:01:48
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:08:56
↓ 200.3%
25.2M
9:28/mi
3:12:12
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
3:20:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:03
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:44:34
Pace7:59 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:5422:517:2122:51
7:21
-
10K
6.21 mi11:20:4545:427:2122:51
7:21
0:00
15K
9.32 mi11:43:281:08:257:2022:43
7:19
-0:02
20K
12.43 mi12:06:081:31:057:2022:40
7:18
-0:01
Half
13.11 mi12:11:061:36:037:204:58
7:17
-0:01
25K
15.53 mi12:28:571:53:547:2017:51
7:22
+0:05
30K
18.64 mi12:52:552:17:527:2423:58
7:43
+0:21
20M
20.00 mi13:03:452:28:427:2610:50
7:58
+0:15
21M
21.00 mi13:12:302:37:277:308:45
8:45
+0:47
35K
21.75 mi13:18:232:43:207:315:53
7:52
-0:53
23M
23.00 mi13:28:442:53:417:3310:21
8:16
+0:24
24M
24.00 mi13:36:513:01:487:358:07
8:07
-0:09
40K
24.85 mi13:43:593:08:567:367:08
8:21
+0:14
25.2M
25.20 mi13:47:153:12:127:383:16
9:28
+1:07
Finish
26.22 mi13:55:403:20:377:398:25
8:16
-1:12

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

7:17 /mi

Average Pace

7:39 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:54

57% of race

Time at Steady Pace

48:48

24% of race

Time at Slower Pace

37:55

19% of race

Average Pace: 7:39 /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 mi10:57:5422:517:2122:51
7:21
#9604
10K
6.21 mi11:20:4545:427:2122:51
7:21
#9303
15K
9.32 mi11:43:281:08:257:2022:43
7:19
#8913
20K
12.43 mi12:06:081:31:057:2022:40
7:18
#8334
Half
13.11 mi12:11:061:36:037:204:58
7:17
#8291
25K
15.53 mi12:28:571:53:547:2017:51
7:22
#7837
30K
18.64 mi12:52:552:17:527:2423:58
7:43
#7429
20M
20.00 mi13:03:452:28:427:2610:50
7:58
#7296
21M
21.00 mi13:12:302:37:277:308:45
8:45
#7217
35K
21.75 mi13:18:232:43:207:315:53
7:52
#7143
23M
23.00 mi13:28:442:53:417:3310:21
8:16
#7051
24M
24.00 mi13:36:513:01:487:358:07
8:07
#7014
40K
24.85 mi13:43:593:08:567:367:08
8:21
#6970
25.2M
25.20 mi13:47:153:12:127:383:16
9:28
#6974
Finish
26.22 mi13:55:403:20:377:398:25
8:16
#7052
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9604184118418249(Top 32%)1367(Top 13%)1367(Top 29%)
10K6.21 mi3.10 mi9303+3011740+1011740+1019101(Top 36%)1686(Top 15%)1686(Top 36%)
15K9.32 mi3.11 mi8913+3901600+1401600+1408249(Top 32%)1367(Top 13%)1367(Top 29%)
20K12.43 mi3.11 mi8334+5791378+2221378+2226956(Top 27%)977(Top 9%)977(Top 21%)
Half13.11 mi0.68 mi8291+431368+101368+107568(Top 30%)1214(Top 11%)1214(Top 26%)
25K15.53 mi2.42 mi7837+4541229+1391229+1396205(Top 24%)885(Top 8%)885(Top 19%)
30K18.64 mi3.11 mi7429+4081141+881141+886237(Top 24%)1061(Top 10%)1061(Top 23%)
20M20.00 mi1.36 mi7296+1331135+61135+66616(Top 26%)1372(Top 13%)1372(Top 29%)
21M21.00 mi1.00 mi7217+791156-211156-217402(Top 29%)1891(Top 17%)1891(Top 41%)
35K21.75 mi0.75 mi7143+74115611566977(Top 27%)1733(Top 16%)1733(Top 37%)
23M23.00 mi1.25 mi7051+921176-201176-207155(Top 28%)1970(Top 18%)1970(Top 42%)
24M24.00 mi1.00 mi7014+371203-271203-277297(Top 29%)2136(Top 20%)2136(Top 46%)
40K24.85 mi0.85 mi6970+441238-351238-357570(Top 30%)2399(Top 22%)2399(Top 51%)
25.2M25.20 mi0.35 mi6974-41253-151253-158632(Top 34%)2956(Top 27%)2956(Top 63%)
Finish26.22 mi1.02 mi7052-781328-751328-7510104(Top 40%)3556(Top 33%)3556(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8249

Females

1367

F18-39

1367

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9101

Females

1686

F18-39

1686

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8249

Females

1367

F18-39

1367

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

6956

Females

977

F18-39

977

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

7568

Females

1214

F18-39

1214

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6205

Females

885

F18-39

885

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6237

Females

1061

F18-39

1061

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6616

Females

1372

F18-39

1372

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7402

Females

1891

F18-39

1891

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

6977

Females

1733

F18-39

1733

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7155

Females

1970

F18-39

1970

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7297

Females

2136

F18-39

2136

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7570

Females

2399

F18-39

2399

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

8632

Females

2956

F18-39

2956

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10104

Females

3556

F18-39

3556

Passing Analysis

Category:
Athletes Passed
3311
Passed By
759
Net Change
+2552
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9604
5K → 10K412111+301#9604#9303
10K → 15K41828+390#9303#8913
15K → 20K5845+579#8913#8334
20K → Half5613+43#8334#8291
Half → 25K46814+454#8291#7837
25K → 30K46153+408#7837#7429
30K → 20M17340+133#7429#7296
20M → 21M15273+79#7296#7217
21M → 35K11036+74#7217#7143
35K → 23M17280+92#7143#7051
23M → 24M11477+37#7051#7014
24M → 40K10157+44#7014#6970
40K → 25.2M3236-4#6970#6974
25.2M → Finish58136-78#6974#7052
TOTALS3311759+2552
📊

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