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BOSTON MARATHON 2024

Megan Lacy

Bib: 29936•F

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
31:46
Rank: #23491
Start → 5K
31:46 | 10:13/mi
10K· 6.21 mi
1:05:12
Rank: #23774 (-283)
5K → 10K
33:26 | 10:46/mi
15K· 9.32 mi
1:41:43
Rank: #24169 (-395)
10K → 15K
36:31 | 11:45/mi
20K· 12.43 mi
2:22:07
Rank: #24435 (-266)
15K → 20K
40:24 | 13:00/mi
Half· 13.11 mi
2:30:03
Rank: #24427 (+8)
20K → Half
7:56 | 11:38/mi
25K· 15.53 mi
3:03:34
Rank: #24545 (-118)
Half → 25K
33:31 | 13:49/mi
30K· 18.64 mi
3:56:03
Rank: #24922 (-377)
25K → 30K
52:29 | 16:54/mi
20M
4:16:06
Rank: #24934 (-12)
30K → 20M
20:03 | 14:45/mi
21M
4:33:04
Rank: #24986 (-52)
20M → 21M
16:58 | 16:58/mi
35K· 21.75 mi
4:42:57
Rank: #24954 (+32)
21M → 35K
9:53 | 13:13/mi
23M
5:05:55
Rank: #25106 (-152)
35K → 23M
22:58 | 18:21/mi
24M
5:18:35
Rank: #25052 (+54)
23M → 24M
12:40 | 12:40/mi
40K· 24.85 mi
5:28:21
Rank: #24964 (+88)
24M → 40K
9:46 | 11:25/mi
25.2M
5:32:12
Rank: #24913 (+51)
40K → 25.2M
3:51 | 11:10/mi
Finish· 26.22 mi
5:42:15
Rank: #24810 (+103)
25.2M → Finish
10:03 | 9:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:30:03
Pace11:27 /mi
2nd Half
Distance13.11 mi
Time3:12:12
Pace14:40 /mi
📊Positive Split: 28.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3531:4610:1331:46
10:13
-
10K
6.21 mi12:28:011:05:1210:3033:26
10:46
+0:33
15K
9.32 mi13:04:321:41:4310:5536:31
11:45
+0:59
20K
12.43 mi13:44:562:22:0711:2640:24
13:00
+1:15
Half
13.11 mi13:52:522:30:0311:277:56
11:38
-1:22
25K
15.53 mi14:26:233:03:3411:4933:31
13:49
+2:11
30K
18.64 mi15:18:523:56:0312:4052:29
16:54
+3:05
20M
20.00 mi15:38:554:16:0612:4820:03
14:45
-2:09
21M
21.00 mi15:55:534:33:0413:0016:58
16:58
+2:13
35K
21.75 mi16:05:464:42:5713:019:53
13:13
-3:45
23M
23.00 mi16:28:445:05:5513:1822:58
18:21
+5:08
24M
24.00 mi16:41:245:18:3513:1612:40
12:40
-5:41
40K
24.85 mi16:51:105:28:2113:139:46
11:25
-1:15
25.2M
25.20 mi16:55:015:32:1213:113:51
11:10
-0:15
Finish
26.22 mi17:05:045:42:1513:0410:03
9:52
-1:18

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

9:52 /mi

Average Pace

13:04 /mi

Slowest Pace

18:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:06

23% of race

Time at Steady Pace

2:30:41

44% of race

Time at Slower Pace

1:52:28

33% of race

Average Pace: 13:03 /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 mi11:54:3531:4610:1331:46
10:13
#23491
10K
6.21 mi12:28:011:05:1210:3033:26
10:46
#23774
15K
9.32 mi13:04:321:41:4310:5536:31
11:45
#24169
20K
12.43 mi13:44:562:22:0711:2640:24
13:00
#24435
Half
13.11 mi13:52:522:30:0311:277:56
11:38
#24427
25K
15.53 mi14:26:233:03:3411:4933:31
13:49
#24545
30K
18.64 mi15:18:523:56:0312:4052:29
16:54
#24922
20M
20.00 mi15:38:554:16:0612:4820:03
14:45
#24934
21M
21.00 mi15:55:534:33:0413:0016:58
16:58
#24986
35K
21.75 mi16:05:464:42:5713:019:53
13:13
#24954
23M
23.00 mi16:28:445:05:5513:1822:58
18:21
#25106
24M
24.00 mi16:41:245:18:3513:1612:40
12:40
#25052
40K
24.85 mi16:51:105:28:2113:139:46
11:25
#24964
25.2M
25.20 mi16:55:015:32:1213:113:51
11:10
#24913
Finish
26.22 mi17:05:045:42:1513:0410:03
9:52
#24810
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi234919652965224513(Top 96%)10288(Top 94%)10288(Top 221%)
10K6.21 mi3.10 mi23774-2839812-1609812-16023961(Top 94%)9947(Top 91%)9947(Top 213%)
15K9.32 mi3.11 mi24169-39510055-24310055-24324513(Top 96%)10288(Top 94%)10288(Top 221%)
20K12.43 mi3.11 mi24435-26610226-17110226-17124851(Top 97%)10512(Top 96%)10512(Top 226%)
Half13.11 mi0.68 mi24427+810225+110225+124264(Top 95%)10194(Top 93%)10194(Top 219%)
25K15.53 mi2.42 mi24545-11810302-7710302-7724822(Top 97%)10533(Top 96%)10533(Top 226%)
30K18.64 mi3.11 mi24922-37710544-24210544-24225454(Top 100%)10882(Top 100%)10882(Top 234%)
20M20.00 mi1.36 mi24934-1210563-1910563-1924583(Top 96%)10510(Top 96%)10510(Top 226%)
21M21.00 mi1.00 mi24986-5210597-3410597-3425034(Top 98%)10735(Top 98%)10735(Top 230%)
35K21.75 mi0.75 mi24954+3210583+1410583+1423510(Top 92%)10067(Top 92%)10067(Top 216%)
23M23.00 mi1.25 mi25106-15210678-9510678-9525433(Top 100%)10883(Top 100%)10883(Top 234%)
24M24.00 mi1.00 mi25052+5410648+3010648+3022562(Top 88%)9700(Top 89%)9700(Top 208%)
40K24.85 mi0.85 mi24964+8810608+4010608+4019172(Top 75%)8109(Top 74%)8109(Top 174%)
25.2M25.20 mi0.35 mi24913+5110581+2710581+2715094(Top 59%)6103(Top 56%)6103(Top 131%)
Finish26.22 mi1.02 mi24810+10310540+4110540+4117948(Top 70%)7486(Top 69%)7486(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

24513

Females

10288

F18-39

10288

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

23961

Females

9947

F18-39

9947

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

24513

Females

10288

F18-39

10288

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

24851

Females

10512

F18-39

10512

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

24264

Females

10194

F18-39

10194

Half→25K

13.1 - 15.5 mi

Top 97%
×4stories
+66ft-88ft

Overall

24822

Females

10533

F18-39

10533

25K→30K

15.5 - 18.6 mi

Top 100%
×9stories
+181ft-148ft

Overall

25454

Females

10882

F18-39

10882

30K→20M

18.6 - 20.0 mi

Top 96%
×5stories
+64ft-50ft

Overall

24583

Females

10510

F18-39

10510

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

25034

Females

10735

F18-39

10735

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

23510

Females

10067

F18-39

10067

35K→23M

21.8 - 23.0 mi

Top 100%
×5stories
+23ft-63ft

Overall

25433

Females

10883

F18-39

10883

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

22562

Females

9700

F18-39

9700

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19172

Females

8109

F18-39

8109

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15094

Females

6103

F18-39

6103

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

17948

Females

7486

F18-39

7486

Passing Analysis

Category:
Athletes Passed
625
Passed By
1944
Net Change
-1319
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23491
5K → 10K103386-283#23491#23774
10K → 15K50445-395#23774#24169
15K → 20K28294-266#24169#24435
20K → Half2820+8#24435#24427
Half → 25K27145-118#24427#24545
25K → 30K11388-377#24545#24922
30K → 20M2941-12#24922#24934
20M → 21M1062-52#24934#24986
21M → 35K397+32#24986#24954
35K → 23M2154-152#24954#25106
23M → 24M562+54#25106#25052
24M → 40K880+88#25052#24964
40K → 25.2M510+51#24964#24913
25.2M → Finish1030+103#24913#24810
TOTALS6251944-1319
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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