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BOSTON MARATHON 2024

Molly Halcom

Bib: 7960•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 40%
Gender (Female)
#0 / 10924
Top 26%
Masters (Masters Women)
#0 / 6263
Top 13%
Division (F45-49)
#0 / 1753
Top 15%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:16
Rank: #13176
Start → 5K
24:16 | 7:49/mi
10K· 6.21 mi
49:09
Rank: #13736 (-560)
5K → 10K
24:53 | 8:01/mi
15K· 9.32 mi
1:13:52
Rank: #13500 (+236)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:39:10
Rank: #13272 (+228)
15K → 20K
25:18 | 8:09/mi
Half· 13.11 mi
1:44:42
Rank: #13269 (+3)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:04:24
Rank: #12777 (+492)
Half → 25K
19:42 | 8:08/mi
30K· 18.64 mi
2:29:58
Rank: #11976 (+801)
25K → 30K
25:34 | 8:14/mi
20M
2:41:18
Rank: #11645 (+331)
30K → 20M
11:20 | 8:20/mi
21M
2:50:06
Rank: #11338 (+307)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
2:56:05
Rank: #11151 (+187)
21M → 35K
5:59 | 8:00/mi
23M
3:06:30
Rank: #10859 (+292)
35K → 23M
10:25 | 8:19/mi
24M
3:14:50
Rank: #10700 (+159)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:21:50
Rank: #10477 (+223)
24M → 40K
7:00 | 8:11/mi
25.2M
3:24:56
Rank: #10404 (+73)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:32:52
Rank: #10248 (+156)
25.2M → Finish
7:56 | 7:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:42
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:48:10
Pace8:15 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:31:0624:167:4924:16
7:49
-
10K
6.21 mi10:55:5949:097:5524:53
8:01
+0:12
15K
9.32 mi11:20:421:13:527:5624:43
7:57
-0:04
20K
12.43 mi11:46:001:39:107:5925:18
8:09
+0:12
Half
13.11 mi11:51:321:44:427:595:32
8:07
-0:02
25K
15.53 mi12:11:142:04:248:0019:42
8:08
+0:01
30K
18.64 mi12:36:482:29:588:0325:34
8:14
+0:06
20M
20.00 mi12:48:082:41:188:0411:20
8:20
+0:06
21M
21.00 mi12:56:562:50:068:068:48
8:48
+0:28
35K
21.75 mi13:02:552:56:058:065:59
8:00
-0:48
23M
23.00 mi13:13:203:06:308:0710:25
8:19
+0:19
24M
24.00 mi13:21:403:14:508:078:20
8:20
+0:01
40K
24.85 mi13:28:403:21:508:077:00
8:11
-0:09
25.2M
25.20 mi13:31:463:24:568:083:06
8:59
+0:48
Finish
26.22 mi13:39:423:32:528:077:56
7:47
-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

7:47 /mi

Average Pace

8:07 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:58

94% of race

Time at Steady Pace

11:54

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:07 /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 mi10:31:0624:167:4924:16
7:49
#13176
10K
6.21 mi10:55:5949:097:5524:53
8:01
#13736
15K
9.32 mi11:20:421:13:527:5624:43
7:57
#13500
20K
12.43 mi11:46:001:39:107:5925:18
8:09
#13272
Half
13.11 mi11:51:321:44:427:595:32
8:07
#13269
25K
15.53 mi12:11:142:04:248:0019:42
8:08
#12777
30K
18.64 mi12:36:482:29:588:0325:34
8:14
#11976
20M
20.00 mi12:48:082:41:188:0411:20
8:20
#11645
21M
21.00 mi12:56:562:50:068:068:48
8:48
#11338
35K
21.75 mi13:02:552:56:058:065:59
8:00
#11151
23M
23.00 mi13:13:203:06:308:0710:25
8:19
#10859
24M
24.00 mi13:21:403:14:508:078:20
8:20
#10700
40K
24.85 mi13:28:403:21:508:077:00
8:11
#10477
25.2M
25.20 mi13:31:463:24:568:083:06
8:59
#10404
Finish
26.22 mi13:39:423:32:528:077:56
7:47
#10248
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi131763820382013126(Top 51%)3873(Top 35%)3873(Top 221%)
10K6.21 mi3.10 mi13736-5604169-3494169-34914282(Top 56%)4494(Top 41%)4494(Top 256%)
15K9.32 mi3.11 mi13500+2364052+1174052+11713126(Top 51%)3873(Top 35%)3873(Top 221%)
20K12.43 mi3.11 mi13272+2283942+1103942+11012799(Top 50%)3735(Top 34%)3735(Top 213%)
Half13.11 mi0.68 mi13269+33945-33945-313466(Top 53%)4158(Top 38%)4158(Top 237%)
25K15.53 mi2.42 mi12777+4923693+2523693+25210952(Top 43%)2941(Top 27%)2941(Top 168%)
30K18.64 mi3.11 mi11976+8013335+3583335+3589185(Top 36%)2309(Top 21%)2309(Top 132%)
20M20.00 mi1.36 mi11645+3313204+1313204+1318611(Top 34%)2283(Top 21%)2283(Top 130%)
21M21.00 mi1.00 mi11338+3073112+923112+927642(Top 30%)2014(Top 18%)2014(Top 115%)
35K21.75 mi0.75 mi11151+1873052+603052+607822(Top 31%)2150(Top 20%)2150(Top 123%)
23M23.00 mi1.25 mi10859+2922958+942958+947492(Top 29%)2141(Top 20%)2141(Top 122%)
24M24.00 mi1.00 mi10700+1592925+332925+338491(Top 33%)2707(Top 25%)2707(Top 154%)
40K24.85 mi0.85 mi10477+2232867+582867+586748(Top 26%)2004(Top 18%)2004(Top 114%)
25.2M25.20 mi0.35 mi10404+732840+272840+276588(Top 26%)1988(Top 18%)1988(Top 113%)
Finish26.22 mi1.02 mi10248+1562795+452795+457298(Top 29%)2253(Top 21%)2253(Top 129%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

13126

Females

3873

F45-49

3873

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

14282

Females

4494

F45-49

4494

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

13126

Females

3873

F45-49

3873

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

12799

Females

3735

F45-49

3735

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

13466

Females

4158

F45-49

4158

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

10952

Females

2941

F45-49

2941

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9185

Females

2309

F45-49

2309

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

8611

Females

2283

F45-49

2283

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7642

Females

2014

F45-49

2014

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

7822

Females

2150

F45-49

2150

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7492

Females

2141

F45-49

2141

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8491

Females

2707

F45-49

2707

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6748

Females

2004

F45-49

2004

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6588

Females

1988

F45-49

1988

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7298

Females

2253

F45-49

2253

Passing Analysis

Category:
Athletes Passed
4067*
Passed By
1139
Net Change
+2928
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13176
5K → 10K129689-560#13176#13736
10K → 15K339103+236#13736#13500
15K → 20K366138+228#13500#13272
20K → Half5956+3#13272#13269
Half → 25K52735+492#13269#12777
25K → 30K81716+801#12777#11976
30K → 20M3398+331#11976#11645
20M → 21M32922+307#11645#11338
21M → 35K1947+187#11338#11151
35K → 23M30412+292#11151#10859
23M → 24M18526+159#10859#10700
24M → 40K231*8+223#10700#10477
40K → 25.2M752+73#10477#10404
25.2M → Finish17317+156#10404#10248
TOTALS4067*1139+2928

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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