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BOSTON MARATHON 2023

Graham Merfield

Bib: 2715 M GB

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M60-64)
#0 / 1110
Top 0.2%
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
6:27/mi
20:01
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:26/mi
39:59
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:23/mi
59:48
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:24/mi
1:19:41
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:21/mi
1:24:01
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:23/mi
1:39:29
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:28/mi
1:59:35
↑ 181↓ 1480.2%
138 ft elev
20M
6:28/mi
2:08:22
↑ 64↓ 500.2%
148 ft elev
21M
6:44/mi
2:15:06
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:10/mi
2:19:43
↑ 17↓ 861.7%
156 ft elev
23M
6:31/mi
2:27:53
↑ 23↓ 630.6%
116 ft elev
24M
6:26/mi
2:34:19
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:32/mi
2:39:54
↓ 200.3%
20 ft elev
25.2M
7:03/mi
2:42:20
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:34/mi
2:49:01
↑ 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
1:24:016:25 /mi⚡ faster
2nd Half
1:25:006:29 /mi+1.2%
Positive split — 1.2% 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
20:016:273.11 mi20:01
6:27
-
10K
39:596:263.10 mi19:58
6:26
-0:01
15K
59:486:253.11 mi19:49
6:23
-0:03
20K
1:19:416:253.11 mi19:53
6:24
+0:01
Half(13.11 mi)
1:24:016:250.68 mi4:20
6:21
-0:03
25K
1:39:296:242.42 mi15:28
6:23
+0:02
30K
1:59:356:253.11 mi20:06
6:28
+0:05
20M
2:08:226:251.36 mi8:47
6:28
0:00
21M
2:15:066:261.00 mi6:44
6:44
+0:16
35K
2:19:436:250.75 mi4:37
6:10
-0:34
23M
2:27:536:261.25 mi8:10
6:31
+0:21
24M
2:34:196:261.00 mi6:26
6:26
-0:05
40K
2:39:546:260.85 mi5:35
6:32
+0:06
25.2M
2:42:206:270.35 mi2:26
7:03
+0:31
Finish(26.22 mi)
2:49:016:271.02 mi6:41
6:34
-0:29
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:10 /mi

Average Pace

6:27 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:46:35

99% of race

Time at Steady Pace

2:26

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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 mi198518941894198318981898
10K6.21 mi3.10 mi2156-1712065-1712065-171236022602260
15K9.32 mi3.11 mi2076+801990+751990+75198318981898
20K12.43 mi3.11 mi1996+801911+791911+79179417171717
Half13.11 mi0.68 mi1985+111901+101901+10196718901890
25K15.53 mi2.42 mi1903+821821+801821+80164115711571
30K18.64 mi3.11 mi1802+1011724+971724+97145413901390
20M20.00 mi1.36 mi1740+621664+601664+60132212611261
21M21.00 mi1.00 mi1694+461620+441620+44121611581158
35K21.75 mi0.75 mi1662+321589+311589+31117311171117
23M23.00 mi1.25 mi1639+231568+211568+21150214271427
24M24.00 mi1.00 mi1625+141554+141554+14179716931693
40K24.85 mi0.85 mi1603+221532+221532+22164115441544
25.2M25.20 mi0.35 mi16031531+11531+1189117741774
Finish26.22 mi1.02 mi1612-91540-91540-9273524932493

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

1983

Males

1898

M60-64

1898

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2360

Males

2260

M60-64

2260

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

1983

Males

1898

M60-64

1898

15K→20K

9.3 - 12.4 mi

Top 7%
×5story building
+106ft-86ft

Overall

1794

Males

1717

M60-64

1717

20K→Half

12.4 - 13.1 mi

Top 7%
×2story building
+19ft-37ft

Overall

1967

Males

1890

M60-64

1890

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1641

Males

1571

M60-64

1571

25K→30K

15.5 - 18.6 mi

Top 5%
×9story building
+181ft-148ft

Overall

1454

Males

1390

M60-64

1390

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1322

Males

1261

M60-64

1261

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1216

Males

1158

M60-64

1158

21M→35K

21.0 - 21.8 mi

Top 4%
×7story building
+17ft-86ft

Overall

1173

Males

1117

M60-64

1117

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1502

Males

1427

M60-64

1427

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

1797

Males

1693

M60-64

1693

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1641

Males

1544

M60-64

1544

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1891

Males

1774

M60-64

1774

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2story building
+22ft-21ft

Overall

2735

Males

2493

M60-64

2493

Passing Analysis

Category:
Athletes Passed
763
Passed By
390
Net Change
+373
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1985
5K → 10K49220-171#1985#2156
10K → 15K10727+80#2156#2076
15K → 20K9818+80#2076#1996
20K → Half165+11#1996#1985
Half → 25K9210+82#1985#1903
25K → 30K11615+101#1903#1802
30K → 20M664+62#1802#1740
20M → 21M504+46#1740#1694
21M → 35K364+32#1694#1662
35K → 23M3815+23#1662#1639
23M → 24M3723+14#1639#1625
24M → 40K319+22#1625#1603
40K → 25.2M990#1603#1603
25.2M → Finish1827-9#1603#1612
TOTALS763390+373

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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