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BOSTON MARATHON 2023

Dominic Norrish

Bib: 11510•M

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
7:59/mi
24:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
50:21
↑ 79↓ 1380.4%
15K· 9.32 mi
8:19/mi
1:16:10
↑ 67↓ 78
20K· 12.43 mi
8:33/mi
1:42:43
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:48:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:09:43
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:38:40
↑ 181↓ 1480.2%
20M
9:27/mi
2:51:30
↑ 64↓ 500.2%
21M
9:57/mi
3:01:27
↑ 106↓ 241.6%
35K· 21.75 mi
9:36/mi
3:08:38
↑ 17↓ 861.7%
23M
10:21/mi
3:21:36
↑ 23↓ 630.6%
24M
10:09/mi
3:31:45
↓ 821.3%
40K· 24.85 mi
10:16/mi
3:40:32
↓ 200.3%
25.2M
10:55/mi
3:44:18
↑ 13↓ 160.2%
Finish· 26.22 mi
9:41/mi
3:54:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:19
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time2:05:51
Pace9:36 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4624:477:5924:47
7:59
-
10K
6.21 mi11:17:2050:218:0625:34
8:14
+0:15
15K
9.32 mi11:43:091:16:108:1025:49
8:19
+0:05
20K
12.43 mi12:09:421:42:438:1626:33
8:33
+0:14
Half
13.11 mi12:15:181:48:198:165:36
8:12
-0:21
25K
15.53 mi12:36:422:09:438:2121:24
8:50
+0:38
30K
18.64 mi13:05:392:38:408:3128:57
9:19
+0:29
20M
20.00 mi13:18:292:51:308:3412:50
9:27
+0:08
21M
21.00 mi13:28:263:01:278:389:57
9:57
+0:30
35K
21.75 mi13:35:373:08:388:407:11
9:36
-0:21
23M
23.00 mi13:48:353:21:368:4612:58
10:21
+0:45
24M
24.00 mi13:58:443:31:458:4910:09
10:09
-0:12
40K
24.85 mi14:07:313:40:328:528:47
10:16
+0:07
25.2M
25.20 mi14:11:173:44:188:543:46
10:55
+0:39
Finish
26.22 mi14:21:093:54:108:569:52
9:41
-1:14

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

7:59 /mi

Average Pace

8:56 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:43

55% of race

Time at Steady Pace

58:50

25% of race

Time at Slower Pace

45:37

19% of race

Average Pace: 8:56 /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 mi10:51:4624:477:5924:47
7:59
#13849
10K
6.21 mi11:17:2050:218:0625:34
8:14
#15142
15K
9.32 mi11:43:091:16:108:1025:49
8:19
#15616
20K
12.43 mi12:09:421:42:438:1626:33
8:33
#16022
Half
13.11 mi12:15:181:48:198:165:36
8:12
#16001
25K
15.53 mi12:36:422:09:438:2121:24
8:50
#16409
30K
18.64 mi13:05:392:38:408:3128:57
9:19
#16842
20M
20.00 mi13:18:292:51:308:3412:50
9:27
#16973
21M
21.00 mi13:28:263:01:278:389:57
9:57
#17028
35K
21.75 mi13:35:373:08:388:407:11
9:36
#17184
23M
23.00 mi13:48:353:21:368:4612:58
10:21
#17544
24M
24.00 mi13:58:443:31:458:4910:09
10:09
#17853
40K
24.85 mi14:07:313:40:328:528:47
10:16
#18018
25.2M
25.20 mi14:11:173:44:188:543:46
10:55
#18074
Finish
26.22 mi14:21:093:54:108:569:52
9:41
#18201
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi138499901990116592(Top 62%)10913(Top 72%)10913(Top 485%)
10K6.21 mi3.10 mi15142-129310387-48610387-48616448(Top 62%)10886(Top 72%)10886(Top 483%)
15K9.32 mi3.11 mi15616-47410552-16510552-16516592(Top 62%)10913(Top 72%)10913(Top 485%)
20K12.43 mi3.11 mi16022-40610685-13310685-13317147(Top 64%)11110(Top 73%)11110(Top 493%)
Half13.11 mi0.68 mi16001+2110671+1410671+1415852(Top 60%)10640(Top 70%)10640(Top 472%)
25K15.53 mi2.42 mi16409-40810806-13510806-13518090(Top 68%)11471(Top 76%)11471(Top 509%)
30K18.64 mi3.11 mi16842-43310954-14810954-14818699(Top 70%)11648(Top 77%)11648(Top 517%)
20M20.00 mi1.36 mi16973-13111001-4711001-4718626(Top 70%)11510(Top 76%)11510(Top 511%)
21M21.00 mi1.00 mi17028-55110011100117841(Top 67%)11159(Top 74%)11159(Top 496%)
35K21.75 mi0.75 mi17184-15611056-5511056-5520148(Top 76%)12102(Top 80%)12102(Top 537%)
23M23.00 mi1.25 mi17544-36011175-11911175-11920947(Top 79%)12429(Top 82%)12429(Top 552%)
24M24.00 mi1.00 mi17853-30911294-11911294-11921174(Top 80%)12495(Top 82%)12495(Top 555%)
40K24.85 mi0.85 mi18018-16511345-5111345-5120654(Top 78%)12211(Top 80%)12211(Top 542%)
25.2M25.20 mi0.35 mi18074-5611364-1911364-1920240(Top 76%)12029(Top 79%)12029(Top 534%)
Finish26.22 mi1.02 mi18201-12711414-5011414-5020722(Top 78%)12280(Top 81%)12280(Top 545%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16592

Males

10913

M45-49

10913

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16448

Males

10886

M45-49

10886

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16592

Males

10913

M45-49

10913

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

17147

Males

11110

M45-49

11110

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15852

Males

10640

M45-49

10640

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

18090

Males

11471

M45-49

11471

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18699

Males

11648

M45-49

11648

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18626

Males

11510

M45-49

11510

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17841

Males

11159

M45-49

11159

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20148

Males

12102

M45-49

12102

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

20947

Males

12429

M45-49

12429

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21174

Males

12495

M45-49

12495

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20654

Males

12211

M45-49

12211

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20240

Males

12029

M45-49

12029

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20722

Males

12280

M45-49

12280

Passing Analysis

Category:
Athletes Passed
543
Passed By
4895
Net Change
-4352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13849
5K → 10K321325-1293#13849#15142
10K → 15K49523-474#15142#15616
15K → 20K73479-406#15616#16022
20K → Half4221+21#16022#16001
Half → 25K54462-408#16001#16409
25K → 30K84517-433#16409#16842
30K → 20M39170-131#16842#16973
20M → 21M68123-55#16973#17028
21M → 35K14170-156#17028#17184
35K → 23M28388-360#17184#17544
23M → 24M14323-309#17544#17853
24M → 40K16181-165#17853#18018
40K → 25.2M1268-56#18018#18074
25.2M → Finish18145-127#18074#18201
TOTALS5434895-4352
📊

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