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BOSTON MARATHON 2023

Jackson Marshall

Bib: 1387•M

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:18
Rank: #1157
Start → 5K
19:18 | 6:13/mi
10K· 6.21 mi
38:27
Rank: #1165 (-8)
5K → 10K
19:09 | 6:10/mi
15K· 9.32 mi
57:41
Rank: #1165
10K → 15K
19:14 | 6:11/mi
20K· 12.43 mi
1:17:47
Rank: #1337 (-172)
15K → 20K
20:06 | 6:28/mi
Half· 13.11 mi
1:21:52
Rank: #1300 (+37)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:36:52
Rank: #1233 (+67)
Half → 25K
15:00 | 6:11/mi
30K· 18.64 mi
1:56:35
Rank: #1184 (+49)
25K → 30K
19:43 | 6:21/mi
20M
2:05:22
Rank: #1180 (+4)
30K → 20M
8:47 | 6:28/mi
21M
2:12:16
Rank: #1184 (-4)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:17:10
Rank: #1216 (-32)
21M → 35K
4:54 | 6:33/mi
23M
2:25:34
Rank: #1249 (-33)
35K → 23M
8:24 | 6:43/mi
24M
2:32:11
Rank: #1288 (-39)
23M → 24M
6:37 | 6:37/mi
40K· 24.85 mi
2:37:53
Rank: #1299 (-11)
24M → 40K
5:42 | 6:40/mi
25.2M
2:40:23
Rank: #1314 (-15)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:46:56
Rank: #1316 (-2)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:52
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:25:04
Pace6:29 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5319:186:1319:18
6:13
-
10K
6.21 mi10:39:0238:276:1119:09
6:10
-0:03
15K
9.32 mi10:58:1657:416:1119:14
6:11
+0:01
20K
12.43 mi11:18:221:17:476:1620:06
6:28
+0:17
Half
13.11 mi11:22:271:21:526:154:05
5:59
-0:29
25K
15.53 mi11:37:271:36:526:1415:00
6:11
+0:12
30K
18.64 mi11:57:101:56:356:1519:43
6:21
+0:10
20M
20.00 mi12:05:572:05:226:168:47
6:28
+0:07
21M
21.00 mi12:12:512:12:166:186:54
6:54
+0:26
35K
21.75 mi12:17:452:17:106:184:54
6:33
-0:21
23M
23.00 mi12:26:092:25:346:208:24
6:43
+0:10
24M
24.00 mi12:32:462:32:116:206:37
6:37
-0:06
40K
24.85 mi12:38:282:37:536:215:42
6:40
+0:03
25.2M
25.20 mi12:40:582:40:236:222:30
7:15
+0:35
Finish
26.22 mi12:47:312:46:566:226:33
6:26
-0:49

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

5:59 /mi

Average Pace

6:22 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:46

46% of race

Time at Steady Pace

1:06:40

40% of race

Time at Slower Pace

23:30

14% of race

Average Pace: 6:22 /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 mi10:19:5319:186:1319:18
6:13
#1157
10K
6.21 mi10:39:0238:276:1119:09
6:10
#1165
15K
9.32 mi10:58:1657:416:1119:14
6:11
#1165
20K
12.43 mi11:18:221:17:476:1620:06
6:28
#1337
Half
13.11 mi11:22:271:21:526:154:05
5:59
#1300
25K
15.53 mi11:37:271:36:526:1415:00
6:11
#1233
30K
18.64 mi11:57:101:56:356:1519:43
6:21
#1184
20M
20.00 mi12:05:572:05:226:168:47
6:28
#1180
21M
21.00 mi12:12:512:12:166:186:54
6:54
#1184
35K
21.75 mi12:17:452:17:106:184:54
6:33
#1216
23M
23.00 mi12:26:092:25:346:208:24
6:43
#1249
24M
24.00 mi12:32:462:32:116:206:37
6:37
#1288
40K
24.85 mi12:38:282:37:536:215:42
6:40
#1299
25.2M
25.20 mi12:40:582:40:236:222:30
7:15
#1314
Finish
26.22 mi12:47:312:46:566:226:33
6:26
#1316
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1157109510951213(Top 5%)1156(Top 8%)1156(Top 22%)
10K6.21 mi3.10 mi1165-81102-71102-71218(Top 5%)1155(Top 8%)1155(Top 22%)
15K9.32 mi3.11 mi11651105-31105-31213(Top 5%)1156(Top 8%)1156(Top 22%)
20K12.43 mi3.11 mi1337-1721273-1681273-1682116(Top 8%)2030(Top 13%)2030(Top 38%)
Half13.11 mi0.68 mi1300+371238+351238+35746(Top 3%)705(Top 5%)705(Top 13%)
25K15.53 mi2.42 mi1233+671178+601178+60972(Top 4%)923(Top 6%)923(Top 17%)
30K18.64 mi3.11 mi1184+491129+491129+491053(Top 4%)1002(Top 7%)1002(Top 19%)
20M20.00 mi1.36 mi1180+41126+31126+31314(Top 5%)1253(Top 8%)1253(Top 24%)
21M21.00 mi1.00 mi1184-41130-41130-41747(Top 7%)1660(Top 11%)1660(Top 31%)
35K21.75 mi0.75 mi1216-321161-311161-312645(Top 10%)2488(Top 16%)2488(Top 47%)
23M23.00 mi1.25 mi1249-331192-311192-312197(Top 8%)2070(Top 14%)2070(Top 39%)
24M24.00 mi1.00 mi1288-391229-371229-372614(Top 10%)2432(Top 16%)2432(Top 46%)
40K24.85 mi0.85 mi1299-111238-91238-92163(Top 8%)2014(Top 13%)2014(Top 38%)
25.2M25.20 mi0.35 mi1314-151252-141252-142637(Top 10%)2423(Top 16%)2423(Top 46%)
Finish26.22 mi1.02 mi1316-2125212522111(Top 8%)1956(Top 13%)1956(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1213

Males

1156

M18-39

1156

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1218

Males

1155

M18-39

1155

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1213

Males

1156

M18-39

1156

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2116

Males

2030

M18-39

2030

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

746

Males

705

M18-39

705

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

972

Males

923

M18-39

923

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1053

Males

1002

M18-39

1002

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1314

Males

1253

M18-39

1253

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1747

Males

1660

M18-39

1660

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2645

Males

2488

M18-39

2488

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2197

Males

2070

M18-39

2070

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2614

Males

2432

M18-39

2432

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2163

Males

2014

M18-39

2014

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2637

Males

2423

M18-39

2423

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2111

Males

1956

M18-39

1956

Passing Analysis

Category:
Athletes Passed
380
Passed By
539
Net Change
-159
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1157
5K → 10K5563-8#1157#1165
10K → 15K35350#1165#1165
15K → 20K9181-172#1165#1337
20K → Half370+37#1337#1300
Half → 25K681+67#1300#1233
25K → 30K6213+49#1233#1184
30K → 20M2016+4#1184#1180
20M → 21M2428-4#1180#1184
21M → 35K638-32#1184#1216
35K → 23M1245-33#1216#1249
23M → 24M1251-39#1249#1288
24M → 40K1223-11#1288#1299
40K → 25.2M722-15#1299#1314
25.2M → Finish2123-2#1314#1316
TOTALS380539-159
📊

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