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BOSTON MARATHON 2023

Nigel Rackham

Bib: 1132 M GB

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M60-64)
#0 / 1110
Top 0.3%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:08/mi
19:03
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:14/mi
38:25
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:24/mi
58:19
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:29/mi
1:18:29
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:27/mi
1:22:53
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:31/mi
1:38:40
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:36/mi
1:59:10
↑ 181↓ 1480.2%
138 ft elev
20M
6:37/mi
2:08:09
↑ 64↓ 500.2%
148 ft elev
21M
7:02/mi
2:15:11
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:26/mi
2:20:00
↑ 17↓ 861.7%
156 ft elev
23M
6:55/mi
2:28:39
↑ 23↓ 630.6%
116 ft elev
24M
6:51/mi
2:35:30
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:19/mi
2:41:45
↓ 200.3%
20 ft elev
25.2M
8:22/mi
2:44:38
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:03/mi
2:52:50
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:22:536:19 /mi⚡ faster
2nd Half
1:29:576:52 /mi+8.5%
Positive split — 8.5% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
19:036:083.11 mi19:03
6:08
-
10K
38:256:113.10 mi19:22
6:14
+0:06
15K
58:196:153.11 mi19:54
6:24
+0:10
20K
1:18:296:193.11 mi20:10
6:29
+0:05
Half(13.11 mi)
1:22:536:190.68 mi4:24
6:27
-0:02
25K
1:38:406:212.42 mi15:47
6:31
+0:04
30K
1:59:106:243.11 mi20:30
6:36
+0:05
20M
2:08:096:241.36 mi8:59
6:37
+0:01
21M
2:15:116:261.00 mi7:02
7:02
+0:25
35K
2:20:006:260.75 mi4:49
6:26
-0:36
23M
2:28:396:281.25 mi8:39
6:55
+0:29
24M
2:35:306:291.00 mi6:51
6:51
-0:04
40K
2:41:456:300.85 mi6:15
7:19
+0:28
25.2M
2:44:386:320.35 mi2:53
8:22
+1:03
Finish(26.22 mi)
2:52:506:361.02 mi8:12
8:03
-0:19
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:08 /mi

Average Pace

6:36 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

38:25

22% of race

Time at Steady Pace

1:41:24

59% of race

Time at Slower Pace

33:01

19% of race

Average Pace: 6:35 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi970914914213520482048
10K6.21 mi3.10 mi1160-1901097-1831097-183148514181418
15K9.32 mi3.11 mi1411-2511346-2491346-249213520482048
20K12.43 mi3.11 mi1590-1791519-1731519-173223421442144
Half13.11 mi0.68 mi1635-451564-451564-45246923682368
25K15.53 mi2.42 mi1710-751637-731637-73220921192119
30K18.64 mi3.11 mi1695+151620+171620+17194518591859
20M20.00 mi1.36 mi1696-11623-31623-3191518271827
21M21.00 mi1.00 mi1712-161638-151638-15228221552155
35K21.75 mi0.75 mi17121639-11639-1212820212021
23M23.00 mi1.25 mi1777-651700-611700-61324730163016
24M24.00 mi1.00 mi1835-581755-551755-55389635553555
40K24.85 mi0.85 mi1927-921843-881843-88546446514651
25.2M25.20 mi0.35 mi1999-721915-721915-72854164426442
Finish26.22 mi1.02 mi2247-2482152-2372152-2371238884568456

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21story building
+97ft-345ft

Overall

2135

Males

2048

M60-64

2048

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1485

Males

1418

M60-64

1418

10K→15K

6.2 - 9.3 mi

Top 8%
×3story building
+67ft-78ft

Overall

2135

Males

2048

M60-64

2048

15K→20K

9.3 - 12.4 mi

Top 8%
×5story building
+106ft-86ft

Overall

2234

Males

2144

M60-64

2144

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2469

Males

2368

M60-64

2368

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2209

Males

2119

M60-64

2119

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

1945

Males

1859

M60-64

1859

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1915

Males

1827

M60-64

1827

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2282

Males

2155

M60-64

2155

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2128

Males

2021

M60-64

2021

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3247

Males

3016

M60-64

3016

23M→24M

23.0 - 24.0 mi

Top 15%
×6story building
+12ft-82ft

Overall

3896

Males

3555

M60-64

3555

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5464

Males

4651

M60-64

4651

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8541

Males

6442

M60-64

6442

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12388

Males

8456

M60-64

8456

Passing Analysis

Category:
Athletes Passed
195
Passed By
1472
Net Change
-1277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#970
5K → 10K8198-190#970#1160
10K → 15K4255-251#1160#1411
15K → 20K11190-179#1411#1590
20K → Half247-45#1590#1635
Half → 25K1590-75#1635#1710
25K → 30K6146+15#1710#1695
30K → 20M2829-1#1695#1696
20M → 21M1935-16#1696#1712
21M → 35K16160#1712#1712
35K → 23M1277-65#1712#1777
23M → 24M1169-58#1777#1835
24M → 40K799-92#1835#1927
40K → 25.2M173-72#1927#1999
25.2M → Finish0248-248#1999#2247
TOTALS1951472-1277

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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