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BOSTON MARATHON 2023

Gary Coetzee

Bib: 13297•M

ON

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
7:50/mi
24:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:12:40
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:37:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:42:46
↑ 19↓ 370.5%
25K· 15.53 mi
8:13/mi
2:02:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:29:07
↑ 181↓ 1480.2%
20M
8:31/mi
2:40:42
↑ 64↓ 500.2%
21M
9:01/mi
2:49:43
↑ 106↓ 241.6%
35K· 21.75 mi
8:33/mi
2:56:07
↑ 17↓ 861.7%
23M
8:43/mi
3:07:02
↑ 23↓ 630.6%
24M
8:43/mi
3:15:45
↓ 821.3%
40K· 24.85 mi
8:54/mi
3:23:22
↓ 200.3%
25.2M
10:06/mi
3:26:51
↑ 13↓ 160.2%
Finish· 26.22 mi
10:06/mi
3:37:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:46
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:54:23
Pace8:44 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2124:197:5024:19
7:50
-
10K
6.21 mi11:16:2048:187:4623:59
7:43
-0:07
15K
9.32 mi11:40:421:12:407:4824:22
7:51
+0:08
20K
12.43 mi12:05:251:37:237:5024:43
7:57
+0:06
Half
13.11 mi12:10:481:42:467:505:23
7:53
-0:04
25K
15.53 mi12:30:442:02:427:5419:56
8:13
+0:20
30K
18.64 mi12:57:092:29:078:0026:25
8:30
+0:17
20M
20.00 mi13:08:442:40:428:0211:35
8:31
+0:01
21M
21.00 mi13:17:452:49:438:059:01
9:01
+0:30
35K
21.75 mi13:24:092:56:078:066:24
8:33
-0:28
23M
23.00 mi13:35:043:07:028:0810:55
8:43
+0:10
24M
24.00 mi13:43:473:15:458:098:43
8:43
0:00
40K
24.85 mi13:51:243:23:228:117:37
8:54
+0:11
25.2M
25.20 mi13:54:533:26:518:133:29
10:06
+1:12
Finish
26.22 mi14:05:113:37:098:1710:18
10:06
0:00

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

7:43 /mi

Average Pace

8:17 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:46

47% of race

Time at Steady Pace

1:23:58

39% of race

Time at Slower Pace

30:25

14% of race

Average Pace: 8:17 /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 mi10:52:2124:197:5024:19
7:50
#12604
10K
6.21 mi11:16:2048:187:4623:59
7:43
#12476
15K
9.32 mi11:40:421:12:407:4824:22
7:51
#12647
20K
12.43 mi12:05:251:37:237:5024:43
7:57
#12727
Half
13.11 mi12:10:481:42:467:505:23
7:53
#12763
25K
15.53 mi12:30:442:02:427:5419:56
8:13
#13029
30K
18.64 mi12:57:092:29:078:0026:25
8:30
#13295
20M
20.00 mi13:08:442:40:428:0211:35
8:31
#13307
21M
21.00 mi13:17:452:49:438:059:01
9:01
#13317
35K
21.75 mi13:24:092:56:078:066:24
8:33
#13395
23M
23.00 mi13:35:043:07:028:0810:55
8:43
#13459
24M
24.00 mi13:43:473:15:458:098:43
8:43
#13543
40K
24.85 mi13:51:243:23:228:117:37
8:54
#13627
25.2M
25.20 mi13:54:533:26:518:133:29
10:06
#13725
Finish
26.22 mi14:05:113:37:098:1710:18
10:06
#14228
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi126049372937213067(Top 49%)9535(Top 63%)9535(Top 423%)
10K6.21 mi3.10 mi12476+1289315+579315+5712425(Top 47%)9305(Top 61%)9305(Top 413%)
15K9.32 mi3.11 mi12647-1719374-599374-5913067(Top 49%)9535(Top 63%)9535(Top 423%)
20K12.43 mi3.11 mi12727-809391-179391-1713065(Top 49%)9468(Top 62%)9468(Top 420%)
Half13.11 mi0.68 mi12763-369405-149405-1413478(Top 51%)9683(Top 64%)9683(Top 430%)
25K15.53 mi2.42 mi13029-2669498-939498-9314378(Top 54%)9920(Top 65%)9920(Top 440%)
30K18.64 mi3.11 mi13295-2669554-569554-5614325(Top 54%)9787(Top 64%)9787(Top 435%)
20M20.00 mi1.36 mi13307-129553+19553+113763(Top 52%)9470(Top 62%)9470(Top 421%)
21M21.00 mi1.00 mi13317-109539+149539+1413486(Top 51%)9264(Top 61%)9264(Top 411%)
35K21.75 mi0.75 mi13395-789551-129551-1215566(Top 58%)10094(Top 67%)10094(Top 448%)
23M23.00 mi1.25 mi13459-649547+49547+414474(Top 54%)9562(Top 63%)9562(Top 425%)
24M24.00 mi1.00 mi13543-849560-139560-1315727(Top 59%)10050(Top 66%)10050(Top 446%)
40K24.85 mi0.85 mi13627-849574-149574-1415639(Top 59%)9965(Top 66%)9965(Top 442%)
25.2M25.20 mi0.35 mi13725-989601-279601-2717871(Top 67%)10931(Top 72%)10931(Top 485%)
Finish26.22 mi1.02 mi14228-5039766-1659766-16522027(Top 83%)12870(Top 85%)12870(Top 571%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13067

Males

9535

M45-49

9535

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12425

Males

9305

M45-49

9305

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13067

Males

9535

M45-49

9535

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13065

Males

9468

M45-49

9468

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13478

Males

9683

M45-49

9683

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

14378

Males

9920

M45-49

9920

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14325

Males

9787

M45-49

9787

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13763

Males

9470

M45-49

9470

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

13486

Males

9264

M45-49

9264

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

15566

Males

10094

M45-49

10094

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14474

Males

9562

M45-49

9562

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15727

Males

10050

M45-49

10050

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15639

Males

9965

M45-49

9965

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17871

Males

10931

M45-49

10931

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22027

Males

12870

M45-49

12870

Passing Analysis

Category:
Athletes Passed
1260
Passed By
2884
Net Change
-1624
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12604
5K → 10K367239+128#12604#12476
10K → 15K135306-171#12476#12647
15K → 20K158238-80#12647#12727
20K → Half2763-36#12727#12763
Half → 25K73339-266#12763#13029
25K → 30K121387-266#13029#13295
30K → 20M8698-12#13295#13307
20M → 21M8393-10#13307#13317
21M → 35K33111-78#13317#13395
35K → 23M71135-64#13395#13459
23M → 24M47131-84#13459#13543
24M → 40K41125-84#13543#13627
40K → 25.2M11109-98#13627#13725
25.2M → Finish7510-503#13725#14228
TOTALS12602884-1624
📊

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