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BOSTON MARATHON 2023

Fred Arnold

Bib: 11444•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
9:04/mi
28:09
↑ 97↓ 3451.5%
10K· 6.21 mi
9:45/mi
58:28
↑ 79↓ 1380.4%
15K· 9.32 mi
10:17/mi
1:30:26
↑ 67↓ 78
20K· 12.43 mi
11:00/mi
2:04:36
↑ 106↓ 860.1%
Half· 13.11 mi
10:38/mi
2:11:51
↑ 19↓ 370.5%
25K· 15.53 mi
12:04/mi
2:41:07
↑ 66↓ 880.2%
30K· 18.64 mi
12:54/mi
3:21:13
↑ 181↓ 1480.2%
20M
12:59/mi
3:38:52
↑ 64↓ 500.2%
21M
14:42/mi
3:53:34
↑ 106↓ 241.6%
35K· 21.75 mi
12:53/mi
4:03:12
↑ 17↓ 861.7%
23M
12:17/mi
4:18:35
↑ 23↓ 630.6%
24M
12:03/mi
4:30:38
↓ 821.3%
40K· 24.85 mi
12:45/mi
4:41:32
↓ 200.3%
25.2M
11:45/mi
4:45:35
↑ 13↓ 160.2%
Finish· 26.22 mi
11:19/mi
4:57:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:51
Pace10:03 /mi
2nd Half
Distance13.11 mi
Time2:45:16
Pace12:36 /mi
📊Positive Split: 25.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1928:099:0428:09
9:04
-
10K
6.21 mi11:25:3858:289:2530:19
9:45
+0:41
15K
9.32 mi11:57:361:30:269:4231:58
10:17
+0:32
20K
12.43 mi12:31:462:04:3610:0234:10
11:00
+0:43
Half
13.11 mi12:39:012:11:5110:037:15
10:38
-0:22
25K
15.53 mi13:08:172:41:0710:2229:16
12:04
+1:26
30K
18.64 mi13:48:233:21:1310:4840:06
12:54
+0:50
20M
20.00 mi14:06:023:38:5210:5717:39
12:59
+0:05
21M
21.00 mi14:20:443:53:3411:0714:42
14:42
+1:43
35K
21.75 mi14:30:224:03:1211:119:38
12:53
-1:49
23M
23.00 mi14:45:454:18:3511:1515:23
12:17
-0:36
24M
24.00 mi14:57:484:30:3811:1712:03
12:03
-0:14
40K
24.85 mi15:08:424:41:3211:2010:54
12:45
+0:42
25.2M
25.20 mi15:12:454:45:3511:204:03
11:45
-1:00
Finish
26.22 mi15:24:174:57:0711:2011:32
11:19
-0:26

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

9:04 /mi

Average Pace

11:20 /mi

Slowest Pace

14:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:23

48% of race

Time at Steady Pace

1:11:39

24% of race

Time at Slower Pace

1:22:05

28% of race

Average Pace: 11:20 /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 mi10:55:1928:099:0428:09
9:04
#20707
10K
6.21 mi11:25:3858:289:2530:19
9:45
#22074
15K
9.32 mi11:57:361:30:269:4231:58
10:17
#22888
20K
12.43 mi12:31:462:04:3610:0234:10
11:00
#23477
Half
13.11 mi12:39:012:11:5110:037:15
10:38
#23536
25K
15.53 mi13:08:172:41:0710:2229:16
12:04
#23904
30K
18.64 mi13:48:233:21:1310:4840:06
12:54
#24351
20M
20.00 mi14:06:023:38:5210:5717:39
12:59
#24444
21M
21.00 mi14:20:443:53:3411:0714:42
14:42
#24562
35K
21.75 mi14:30:224:03:1211:119:38
12:53
#24630
23M
23.00 mi14:45:454:18:3511:1515:23
12:17
#24624
24M
24.00 mi14:57:484:30:3811:1712:03
12:03
#24629
40K
24.85 mi15:08:424:41:3211:2010:54
12:45
#24650
25.2M
25.20 mi15:12:454:45:3511:204:03
11:45
#24619
Finish
26.22 mi15:24:174:57:0711:2011:32
11:19
#24636
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi20707124671246724067(Top 90%)14119(Top 93%)14119(Top 627%)
10K6.21 mi3.10 mi22074-136713161-69413161-69423180(Top 87%)13726(Top 90%)13726(Top 610%)
15K9.32 mi3.11 mi22888-81413580-41913580-41924067(Top 90%)14119(Top 93%)14119(Top 627%)
20K12.43 mi3.11 mi23477-58913868-28813868-28824627(Top 93%)14335(Top 94%)14335(Top 637%)
Half13.11 mi0.68 mi23536-5913891-2313891-2324412(Top 92%)14232(Top 94%)14232(Top 632%)
25K15.53 mi2.42 mi23904-36814032-14114032-14125211(Top 95%)14554(Top 96%)14554(Top 646%)
30K18.64 mi3.11 mi24351-44714208-17614208-17625333(Top 95%)14553(Top 96%)14553(Top 646%)
20M20.00 mi1.36 mi24444-9314241-3314241-3325155(Top 94%)14459(Top 95%)14459(Top 642%)
21M21.00 mi1.00 mi24562-11814291-5014291-5025558(Top 96%)14650(Top 97%)14650(Top 651%)
35K21.75 mi0.75 mi24630-6814309-1814309-1825459(Top 96%)14547(Top 96%)14547(Top 646%)
23M23.00 mi1.25 mi24624+614300+914300+924345(Top 91%)14012(Top 92%)14012(Top 622%)
24M24.00 mi1.00 mi24629-514294+614294+624595(Top 92%)14090(Top 93%)14090(Top 626%)
40K24.85 mi0.85 mi24650-2114289+514289+524722(Top 93%)14168(Top 93%)14168(Top 629%)
25.2M25.20 mi0.35 mi24619+3114272+1714272+1722048(Top 83%)12881(Top 85%)12881(Top 572%)
Finish26.22 mi1.02 mi24636-1714279-714279-724445(Top 92%)14046(Top 93%)14046(Top 624%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

24067

Males

14119

M45-49

14119

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23180

Males

13726

M45-49

13726

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

24067

Males

14119

M45-49

14119

15K→20K

9.3 - 12.4 mi

Top 93%
×5story building
+106ft-86ft

Overall

24627

Males

14335

M45-49

14335

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

24412

Males

14232

M45-49

14232

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

25211

Males

14554

M45-49

14554

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25333

Males

14553

M45-49

14553

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

25155

Males

14459

M45-49

14459

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

25558

Males

14650

M45-49

14650

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25459

Males

14547

M45-49

14547

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24345

Males

14012

M45-49

14012

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

24595

Males

14090

M45-49

14090

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24722

Males

14168

M45-49

14168

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22048

Males

12881

M45-49

12881

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

24445

Males

14046

M45-49

14046

Passing Analysis

Category:
Athletes Passed
287
Passed By
4216
Net Change
-3929
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20707
5K → 10K201387-1367#20707#22074
10K → 15K20834-814#22074#22888
15K → 20K16605-589#22888#23477
20K → Half1372-59#23477#23536
Half → 25K19387-368#23536#23904
25K → 30K23470-447#23904#24351
30K → 20M20113-93#24351#24444
20M → 21M11129-118#24444#24562
21M → 35K472-68#24562#24630
35K → 23M4337+6#24630#24624
23M → 24M2833-5#24624#24629
24M → 40K2041-21#24629#24650
40K → 25.2M321+31#24650#24619
25.2M → Finish1835-17#24619#24636
TOTALS2874216-3929
📊

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