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BOSTON MARATHON 2023

James Halliday

Bib: 22527•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
Top 44%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:29/mi
29:27
↑ 97↓ 3451.5%
10K· 6.21 mi
9:44/mi
59:41
↑ 79↓ 1380.4%
15K· 9.32 mi
9:50/mi
1:30:15
↑ 67↓ 78
20K· 12.43 mi
9:49/mi
2:00:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:33/mi
2:07:15
↑ 19↓ 370.5%
25K· 15.53 mi
9:40/mi
2:30:41
↑ 66↓ 880.2%
30K· 18.64 mi
9:47/mi
3:01:06
↑ 181↓ 1480.2%
20M
9:41/mi
3:14:15
↑ 64↓ 500.2%
21M
10:29/mi
3:24:44
↑ 106↓ 241.6%
35K· 21.75 mi
9:29/mi
3:31:50
↑ 17↓ 861.7%
23M
10:00/mi
3:44:21
↑ 23↓ 630.6%
24M
9:57/mi
3:54:18
↓ 821.3%
40K· 24.85 mi
10:23/mi
4:03:11
↓ 200.3%
25.2M
11:24/mi
4:07:07
↑ 13↓ 160.2%
Finish· 26.22 mi
10:27/mi
4:17:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:15
Pace9:42 /mi
2nd Half
Distance13.11 mi
Time2:10:31
Pace9:57 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5929:279:2929:27
9:29
-
10K
6.21 mi11:53:1359:419:3630:14
9:44
+0:15
15K
9.32 mi12:23:471:30:159:4130:34
9:50
+0:06
20K
12.43 mi12:54:162:00:449:4330:29
9:49
-0:01
Half
13.11 mi13:00:472:07:159:426:31
9:33
-0:16
25K
15.53 mi13:24:132:30:419:4223:26
9:40
+0:07
30K
18.64 mi13:54:383:01:069:4330:25
9:47
+0:07
20M
20.00 mi14:07:473:14:159:4313:09
9:41
-0:06
21M
21.00 mi14:18:163:24:449:4510:29
10:29
+0:48
35K
21.75 mi14:25:223:31:509:447:06
9:29
-1:00
23M
23.00 mi14:37:533:44:219:4512:31
10:00
+0:31
24M
24.00 mi14:47:503:54:189:469:57
9:57
-0:03
40K
24.85 mi14:56:434:03:119:478:53
10:23
+0:26
25.2M
25.20 mi15:00:394:07:079:483:56
11:24
+1:01
Finish
26.22 mi15:11:184:17:469:5010:39
10:27
-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

9:29 /mi

Average Pace

9:50 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

43:04

17% of race

Time at Steady Pace

3:00:45

70% of race

Time at Slower Pace

33:57

13% of race

Average Pace: 9:50 /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 mi11:22:5929:279:2929:27
9:29
#22023
10K
6.21 mi11:53:1359:419:3630:14
9:44
#22619
15K
9.32 mi12:23:471:30:159:4130:34
9:50
#22831
20K
12.43 mi12:54:162:00:449:4330:29
9:49
#22709
Half
13.11 mi13:00:472:07:159:426:31
9:33
#22696
25K
15.53 mi13:24:132:30:419:4223:26
9:40
#22474
30K
18.64 mi13:54:383:01:069:4330:25
9:47
#22108
20M
20.00 mi14:07:473:14:159:4313:09
9:41
#21913
21M
21.00 mi14:18:163:24:449:4510:29
10:29
#21792
35K
21.75 mi14:25:223:31:509:447:06
9:29
#21727
23M
23.00 mi14:37:533:44:219:4512:31
10:00
#21617
24M
24.00 mi14:47:503:54:189:469:57
9:57
#21567
40K
24.85 mi14:56:434:03:119:478:53
10:23
#21553
25.2M
25.20 mi15:00:394:07:079:483:56
11:24
#21545
Finish
26.22 mi15:11:184:17:469:5010:39
10:27
#21614
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi22023131101311023141(Top 87%)13695(Top 90%)13695(Top 6430%)
10K6.21 mi3.10 mi22619-59613437-32713437-32723112(Top 87%)13697(Top 90%)13697(Top 6431%)
15K9.32 mi3.11 mi22831-21213554-11713554-11723141(Top 87%)13695(Top 90%)13695(Top 6430%)
20K12.43 mi3.11 mi22709+12213493+6113493+6122434(Top 84%)13367(Top 88%)13367(Top 6276%)
Half13.11 mi0.68 mi22696+1313483+1013483+1022242(Top 84%)13301(Top 88%)13301(Top 6245%)
25K15.53 mi2.42 mi22474+22213360+12313360+12321341(Top 80%)12858(Top 85%)12858(Top 6037%)
30K18.64 mi3.11 mi22108+36613188+17213188+17220422(Top 77%)12395(Top 82%)12395(Top 5819%)
20M20.00 mi1.36 mi21913+19513092+9613092+9619497(Top 73%)11909(Top 78%)11909(Top 5591%)
21M21.00 mi1.00 mi21792+12113033+5913033+5919547(Top 73%)11860(Top 78%)11860(Top 5568%)
35K21.75 mi0.75 mi21727+6512997+3612997+3619822(Top 74%)11982(Top 79%)11982(Top 5625%)
23M23.00 mi1.25 mi21617+11012929+6812929+6819980(Top 75%)12015(Top 79%)12015(Top 5641%)
24M24.00 mi1.00 mi21567+5012895+3412895+3420640(Top 78%)12271(Top 81%)12271(Top 5761%)
40K24.85 mi0.85 mi21553+1412876+1912876+1920946(Top 79%)12355(Top 81%)12355(Top 5800%)
25.2M25.20 mi0.35 mi21545+812866+1012866+1021338(Top 80%)12545(Top 83%)12545(Top 5890%)
Finish26.22 mi1.02 mi21614-6912890-2412890-2422898(Top 86%)13274(Top 87%)13274(Top 6232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23141

Males

13695

M70-74

13695

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23112

Males

13697

M70-74

13697

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23141

Males

13695

M70-74

13695

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22434

Males

13367

M70-74

13367

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22242

Males

13301

M70-74

13301

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21341

Males

12858

M70-74

12858

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20422

Males

12395

M70-74

12395

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

19497

Males

11909

M70-74

11909

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19547

Males

11860

M70-74

11860

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

19822

Males

11982

M70-74

11982

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19980

Males

12015

M70-74

12015

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20640

Males

12271

M70-74

12271

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20946

Males

12355

M70-74

12355

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21338

Males

12545

M70-74

12545

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22898

Males

13274

M70-74

13274

Passing Analysis

Category:
Athletes Passed
1657
Passed By
1248
Net Change
+409
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22023
5K → 10K55651-596#22023#22619
10K → 15K80292-212#22619#22831
15K → 20K20078+122#22831#22709
20K → Half2714+13#22709#22696
Half → 25K23715+222#22696#22474
25K → 30K3748+366#22474#22108
30K → 20M1983+195#22108#21913
20M → 21M1298+121#21913#21792
21M → 35K716+65#21792#21727
35K → 23M12616+110#21727#21617
23M → 24M6717+50#21617#21567
24M → 40K4733+14#21567#21553
40K → 25.2M2820+8#21553#21545
25.2M → Finish1887-69#21545#21614
TOTALS16571248+409
📊

Passing Visuals

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