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BOSTON MARATHON 2024

Cassidy Macdonald

Bib: 4353•M

QC

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 7%
Gender (Male)
#0 / 14578
Top 11%
Division (M18-39)
#0 / 4849
Top 26%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:49
Rank: #1101
Start → 5K
18:49 | 6:03/mi
10K· 6.21 mi
38:06
Rank: #1302 (-201)
5K → 10K
19:17 | 6:12/mi
15K· 9.32 mi
57:50
Rank: #1499 (-197)
10K → 15K
19:44 | 6:21/mi
20K· 12.43 mi
1:18:24
Rank: #1739 (-240)
15K → 20K
20:34 | 6:37/mi
Half· 13.11 mi
1:22:49
Rank: #1768 (-29)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:39:00
Rank: #1857 (-89)
Half → 25K
16:11 | 6:40/mi
30K· 18.64 mi
2:01:00
Rank: #2007 (-150)
25K → 30K
22:00 | 7:05/mi
20M
2:10:50
Rank: #2053 (-46)
30K → 20M
9:50 | 7:14/mi
21M
2:18:18
Rank: #2032 (+21)
20M → 21M
7:28 | 7:28/mi
35K· 21.75 mi
2:23:31
Rank: #2026 (+6)
21M → 35K
5:13 | 6:58/mi
23M
2:32:17
Rank: #1975 (+51)
35K → 23M
8:46 | 7:00/mi
24M
2:39:13
Rank: #1934 (+41)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:44:58
Rank: #1871 (+63)
24M → 40K
5:45 | 6:44/mi
25.2M
2:47:27
Rank: #1819 (+52)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:53:49
Rank: #1710 (+109)
25.2M → Finish
6:22 | 6:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:49
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:31:00
Pace6:57 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3518:496:0318:49
6:03
-
10K
6.21 mi10:41:5238:066:0819:17
6:12
+0:09
15K
9.32 mi11:01:3657:506:1219:44
6:21
+0:09
20K
12.43 mi11:22:101:18:246:1920:34
6:37
+0:16
Half
13.11 mi11:26:351:22:496:194:25
6:28
-0:09
25K
15.53 mi11:42:461:39:006:2216:11
6:40
+0:12
30K
18.64 mi12:04:462:01:006:2922:00
7:05
+0:25
20M
20.00 mi12:14:362:10:506:329:50
7:14
+0:09
21M
21.00 mi12:22:042:18:186:357:28
7:28
+0:14
35K
21.75 mi12:27:172:23:316:365:13
6:58
-0:30
23M
23.00 mi12:36:032:32:176:378:46
7:00
+0:02
24M
24.00 mi12:42:592:39:136:386:56
6:56
-0:04
40K
24.85 mi12:48:442:44:586:385:45
6:44
-0:12
25.2M
25.20 mi12:51:132:47:276:392:29
7:12
+0:28
Finish
26.22 mi12:57:352:53:496:386:22
6:15
-0:57

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

6:03 /mi

Average Pace

6:38 /mi

Slowest Pace

7:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:08:37

39% of race

Time at Steady Pace

49:26

28% of race

Time at Slower Pace

55:46

32% of race

Average Pace: 6:38 /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 mi10:22:3518:496:0318:49
6:03
#1101
10K
6.21 mi10:41:5238:066:0819:17
6:12
#1302
15K
9.32 mi11:01:3657:506:1219:44
6:21
#1499
20K
12.43 mi11:22:101:18:246:1920:34
6:37
#1739
Half
13.11 mi11:26:351:22:496:194:25
6:28
#1768
25K
15.53 mi11:42:461:39:006:2216:11
6:40
#1857
30K
18.64 mi12:04:462:01:006:2922:00
7:05
#2007
20M
20.00 mi12:14:362:10:506:329:50
7:14
#2053
21M
21.00 mi12:22:042:18:186:357:28
7:28
#2032
35K
21.75 mi12:27:172:23:316:365:13
6:58
#2026
23M
23.00 mi12:36:032:32:176:378:46
7:00
#1975
24M
24.00 mi12:42:592:39:136:386:56
6:56
#1934
40K
24.85 mi12:48:442:44:586:385:45
6:44
#1871
25.2M
25.20 mi12:51:132:47:276:392:29
7:12
#1819
Finish
26.22 mi12:57:352:53:496:386:22
6:15
#1710
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1101106210621962(Top 8%)1900(Top 13%)1900(Top 39%)
10K6.21 mi3.10 mi1302-2011262-2001262-2001528(Top 6%)1481(Top 10%)1481(Top 31%)
15K9.32 mi3.11 mi1499-1971453-1911453-1911962(Top 8%)1900(Top 13%)1900(Top 39%)
20K12.43 mi3.11 mi1739-2401686-2331686-2332724(Top 11%)2601(Top 18%)2601(Top 54%)
Half13.11 mi0.68 mi1768-291714-281714-282434(Top 10%)2329(Top 16%)2329(Top 48%)
25K15.53 mi2.42 mi1857-891797-831797-832477(Top 10%)2356(Top 16%)2356(Top 49%)
30K18.64 mi3.11 mi2007-1501937-1401937-1403240(Top 13%)2984(Top 20%)2984(Top 62%)
20M20.00 mi1.36 mi2053-461974-371974-373269(Top 13%)2965(Top 20%)2965(Top 61%)
21M21.00 mi1.00 mi2032+211948+261948+262373(Top 9%)2178(Top 15%)2178(Top 45%)
35K21.75 mi0.75 mi2026+61940+81940+82930(Top 11%)2639(Top 18%)2639(Top 54%)
23M23.00 mi1.25 mi1975+511891+491891+491935(Top 8%)1773(Top 12%)1773(Top 37%)
24M24.00 mi1.00 mi1934+411849+421849+422089(Top 8%)1886(Top 13%)1886(Top 39%)
40K24.85 mi0.85 mi1871+631786+631786+631144(Top 4%)1060(Top 7%)1060(Top 22%)
25.2M25.20 mi0.35 mi1819+521738+481738+48868(Top 3%)799(Top 5%)799(Top 16%)
Finish26.22 mi1.02 mi1710+1091632+1061632+106819(Top 3%)763(Top 5%)763(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

1962

Males

1900

M18-39

1900

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1528

Males

1481

M18-39

1481

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

1962

Males

1900

M18-39

1900

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2724

Males

2601

M18-39

2601

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2434

Males

2329

M18-39

2329

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2477

Males

2356

M18-39

2356

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3240

Males

2984

M18-39

2984

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3269

Males

2965

M18-39

2965

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2373

Males

2178

M18-39

2178

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2930

Males

2639

M18-39

2639

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

1935

Males

1773

M18-39

1773

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2089

Males

1886

M18-39

1886

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1144

Males

1060

M18-39

1060

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

868

Males

799

M18-39

799

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

819

Males

763

M18-39

763

Passing Analysis

Category:
Athletes Passed
665
Passed By
1274
Net Change
-609
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1101
5K → 10K12213-201#1101#1302
10K → 15K18215-197#1302#1499
15K → 20K18258-240#1499#1739
20K → Half534-29#1739#1768
Half → 25K49138-89#1768#1857
25K → 30K72222-150#1857#2007
30K → 20M3884-46#2007#2053
20M → 21M5534+21#2053#2032
21M → 35K3226+6#2032#2026
35K → 23M7726+51#2026#1975
23M → 24M5817+41#1975#1934
24M → 40K696+63#1934#1871
40K → 25.2M520+52#1871#1819
25.2M → Finish1101+109#1819#1710
TOTALS6651274-609
📊

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