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BOSTON MARATHON 2024

Kelly Laffey

NY

Bib: 25587 F

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:54/mi
27:40
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:58/mi
55:31
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:55/mi
1:23:14
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:02/mi
1:51:19
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:10/mi
1:57:34
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:20/mi
2:20:11
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:57/mi
2:51:05
↑ 181↓ 1480.2%
138 ft elev
20M
10:05/mi
3:04:47
↑ 64↓ 500.2%
148 ft elev
21M
10:29/mi
3:15:16
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:00/mi
3:22:00
↑ 17↓ 861.7%
156 ft elev
23M
9:34/mi
3:33:59
↑ 23↓ 630.6%
116 ft elev
24M
9:09/mi
3:43:08
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:13/mi
3:51:01
↓ 200.3%
20 ft elev
25.2M
9:49/mi
3:54:24
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:03/mi
4:02:36
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:57:348:58 /mi⚡ faster
2nd Half
2:05:029:32 /mi+6.4%
Positive split — 6.4% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4227:408:5427:40
8:54
-
10K
6.21 mi12:12:3355:318:5627:51
8:58
+0:04
15K
9.32 mi12:40:161:23:148:5627:43
8:55
-0:03
20K
12.43 mi13:08:211:51:198:5728:05
9:02
+0:07
Half
13.11 mi13:14:361:57:348:586:15
9:10
+0:08
25K
15.53 mi13:37:132:20:119:0122:37
9:20
+0:10
30K
18.64 mi14:08:072:51:059:1130:54
9:57
+0:37
20M
20.00 mi14:21:493:04:479:1413:42
10:05
+0:08
21M
21.00 mi14:32:183:15:169:1810:29
10:29
+0:24
35K
21.75 mi14:39:023:22:009:176:44
9:00
-1:29
23M
23.00 mi14:51:013:33:599:1811:59
9:34
+0:34
24M
24.00 mi15:00:103:43:089:189:09
9:09
-0:25
40K
24.85 mi15:08:033:51:019:187:53
9:13
+0:04
25.2M
25.20 mi15:11:263:54:249:183:23
9:49
+0:36
Finish
26.22 mi15:19:384:02:369:168:12
8:03
-1:46

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

8:03 /mi

Average Pace

9:16 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

8:12

3% of race

Time at Steady Pace

2:43:57

68% of race

Time at Slower Pace

1:10:27

29% of race

Average Pace: 9:15 /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 mi11:44:4227:408:5427:40
8:54
#19703
10K
6.21 mi12:12:3355:318:5627:51
8:58
#19630
15K
9.32 mi12:40:161:23:148:5627:43
8:55
#19274
20K
12.43 mi13:08:211:51:198:5728:05
9:02
#18777
Half
13.11 mi13:14:361:57:348:586:15
9:10
#18780
25K
15.53 mi13:37:132:20:119:0122:37
9:20
#18413
30K
18.64 mi14:08:072:51:059:1130:54
9:57
#18153
20M
20.00 mi14:21:493:04:479:1413:42
10:05
#18064
21M
21.00 mi14:32:183:15:169:1810:29
10:29
#17841
35K
21.75 mi14:39:023:22:009:176:44
9:00
#17688
23M
23.00 mi14:51:013:33:599:1811:59
9:34
#17450
24M
24.00 mi15:00:103:43:089:189:09
9:09
#17264
40K
24.85 mi15:08:033:51:019:187:53
9:13
#17034
25.2M
25.20 mi15:11:263:54:249:183:23
9:49
#16922
Finish
26.22 mi15:19:384:02:369:168:12
8:03
#16623
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi19703772477241854369986998
10K6.21 mi3.10 mi19630+737658+667658+661960576227622
15K9.32 mi3.11 mi19274+3567437+2217437+2211854369986998
20K12.43 mi3.11 mi18777+4977169+2687169+2681750764336433
Half13.11 mi0.68 mi18780-37173-47173-41893672897289
25K15.53 mi2.42 mi18413+3676992+1816992+1811690562186218
30K18.64 mi3.11 mi18153+2606919+736919+731719066206620
20M20.00 mi1.36 mi18064+896900+196900+191676565926592
21M21.00 mi1.00 mi17841+2236811+896811+891478457205720
35K21.75 mi0.75 mi17688+1536733+786733+781335049954995
23M23.00 mi1.25 mi17450+2386623+1106623+1101382153285328
24M24.00 mi1.00 mi17264+1866540+836540+831290048854885
40K24.85 mi0.85 mi17034+2306450+906450+901192945134513
25.2M25.20 mi0.35 mi16922+1126409+416409+411024137713771
Finish26.22 mi1.02 mi16623+2996260+1496260+149886430053005

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

18543

Females

6998

F18-39

6998

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

19605

Females

7622

F18-39

7622

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

18543

Females

6998

F18-39

6998

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

17507

Females

6433

F18-39

6433

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

18936

Females

7289

F18-39

7289

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

16905

Females

6218

F18-39

6218

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17190

Females

6620

F18-39

6620

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

16765

Females

6592

F18-39

6592

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

14784

Females

5720

F18-39

5720

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13350

Females

4995

F18-39

4995

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

13821

Females

5328

F18-39

5328

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

12900

Females

4885

F18-39

4885

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

11929

Females

4513

F18-39

4513

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10241

Females

3771

F18-39

3771

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

8864

Females

3005

F18-39

3005

Passing Analysis

Category:
Athletes Passed
3707
Passed By
627
Net Change
+3080
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19703
5K → 10K289216+73#19703#19630
10K → 15K43175+356#19630#19274
15K → 20K54043+497#19274#18777
20K → Half3538-3#18777#18780
Half → 25K41649+367#18780#18413
25K → 30K378118+260#18413#18153
30K → 20M13748+89#18153#18064
20M → 21M23613+223#18064#17841
21M → 35K1585+153#17841#17688
35K → 23M25113+238#17688#17450
23M → 24M1882+186#17450#17264
24M → 40K2355+230#17264#17034
40K → 25.2M1120+112#17034#16922
25.2M → Finish3012+299#16922#16623
TOTALS3707627+3080

Passing Charts

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