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BOSTON MARATHON 2023

Gary Marlow

Bib: 16344•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
7:49/mi
24:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
48:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:05/mi
1:13:18
↑ 67↓ 78
20K· 12.43 mi
8:10/mi
1:38:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:44:12
↑ 19↓ 370.5%
25K· 15.53 mi
8:22/mi
2:04:29
↑ 66↓ 880.2%
30K· 18.64 mi
8:44/mi
2:31:36
↑ 181↓ 1480.2%
20M
8:54/mi
2:43:41
↑ 64↓ 500.2%
21M
10:12/mi
2:53:53
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
3:00:12
↑ 17↓ 861.7%
23M
8:50/mi
3:11:16
↑ 23↓ 630.6%
24M
8:34/mi
3:19:50
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:27:21
↓ 200.3%
25.2M
9:28/mi
3:30:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:39:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:12
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:55:00
Pace8:46 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3124:187:4924:18
7:49
-
10K
6.21 mi11:38:2448:117:4523:53
7:41
-0:08
15K
9.32 mi12:03:311:13:187:5225:07
8:05
+0:24
20K
12.43 mi12:28:541:38:417:5625:23
8:10
+0:05
Half
13.11 mi12:34:251:44:127:575:31
8:05
-0:05
25K
15.53 mi12:54:422:04:298:0120:17
8:22
+0:17
30K
18.64 mi13:21:492:31:368:0827:07
8:44
+0:22
20M
20.00 mi13:33:542:43:418:1112:05
8:54
+0:10
21M
21.00 mi13:44:062:53:538:1710:12
10:12
+1:18
35K
21.75 mi13:50:253:00:128:176:19
8:27
-1:45
23M
23.00 mi14:01:293:11:168:1911:04
8:50
+0:23
24M
24.00 mi14:10:033:19:508:208:34
8:34
-0:16
40K
24.85 mi14:17:343:27:218:217:31
8:47
+0:13
25.2M
25.20 mi14:20:503:30:378:213:16
9:28
+0:41
Finish
26.22 mi14:29:253:39:128:228:35
8:25
-1:03

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

7:41 /mi

Average Pace

8:22 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:49

36% of race

Time at Steady Pace

1:36:15

44% of race

Time at Slower Pace

44:08

20% of race

Average Pace: 8:22 /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 mi11:14:3124:187:4924:18
7:49
#12552
10K
6.21 mi11:38:2448:117:4523:53
7:41
#12308
15K
9.32 mi12:03:311:13:187:5225:07
8:05
#13267
20K
12.43 mi12:28:541:38:417:5625:23
8:10
#13618
Half
13.11 mi12:34:251:44:127:575:31
8:05
#13691
25K
15.53 mi12:54:422:04:298:0120:17
8:22
#13964
30K
18.64 mi13:21:492:31:368:0827:07
8:44
#14347
20M
20.00 mi13:33:542:43:418:1112:05
8:54
#14440
21M
21.00 mi13:44:062:53:538:1710:12
10:12
#14767
35K
21.75 mi13:50:253:00:128:176:19
8:27
#14747
23M
23.00 mi14:01:293:11:168:1911:04
8:50
#14776
24M
24.00 mi14:10:033:19:508:208:34
8:34
#14748
40K
24.85 mi14:17:343:27:218:217:31
8:47
#14721
25.2M
25.20 mi14:20:503:30:378:213:16
9:28
#14726
Finish
26.22 mi14:29:253:39:128:228:35
8:25
#14719
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi125529347934715044(Top 57%)10323(Top 68%)10323(Top 726%)
10K6.21 mi3.10 mi12308+2449252+959252+9512115(Top 46%)9167(Top 60%)9167(Top 645%)
15K9.32 mi3.11 mi13267-9599635-3839635-38315044(Top 57%)10323(Top 68%)10323(Top 726%)
20K12.43 mi3.11 mi13618-3519745-1109745-11014744(Top 55%)10173(Top 67%)10173(Top 715%)
Half13.11 mi0.68 mi13691-739772-279772-2714993(Top 56%)10293(Top 68%)10293(Top 724%)
25K15.53 mi2.42 mi13964-2739857-859857-8515345(Top 58%)10278(Top 68%)10278(Top 723%)
30K18.64 mi3.11 mi14347-3839963-1069963-10615648(Top 59%)10327(Top 68%)10327(Top 726%)
20M20.00 mi1.36 mi14440-939980-179980-1715947(Top 60%)10383(Top 68%)10383(Top 730%)
21M21.00 mi1.00 mi14767-32710104-12410104-12418686(Top 70%)11505(Top 76%)11505(Top 809%)
35K21.75 mi0.75 mi14747+2010075+2910075+2914951(Top 56%)9856(Top 65%)9856(Top 693%)
23M23.00 mi1.25 mi14776-2910054+2110054+2115180(Top 57%)9881(Top 65%)9881(Top 695%)
24M24.00 mi1.00 mi14748+2810020+3410020+3414849(Top 56%)9690(Top 64%)9690(Top 681%)
40K24.85 mi0.85 mi14721+279990+309990+3015021(Top 56%)9694(Top 64%)9694(Top 682%)
25.2M25.20 mi0.35 mi14726-59979+119979+1115002(Top 56%)9678(Top 64%)9678(Top 681%)
Finish26.22 mi1.02 mi14719+79963+169963+1614872(Top 56%)9667(Top 64%)9667(Top 680%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

15044

Males

10323

M55-59

10323

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12115

Males

9167

M55-59

9167

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

15044

Males

10323

M55-59

10323

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14744

Males

10173

M55-59

10173

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

14993

Males

10293

M55-59

10293

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15345

Males

10278

M55-59

10278

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15648

Males

10327

M55-59

10327

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15947

Males

10383

M55-59

10383

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18686

Males

11505

M55-59

11505

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14951

Males

9856

M55-59

9856

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15180

Males

9881

M55-59

9881

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14849

Males

9690

M55-59

9690

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15021

Males

9694

M55-59

9694

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15002

Males

9678

M55-59

9678

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14872

Males

9667

M55-59

9667

Passing Analysis

Category:
Athletes Passed
1172
Passed By
3339
Net Change
-2167
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12552
5K → 10K455211+244#12552#12308
10K → 15K26985-959#12308#13267
15K → 20K93444-351#13267#13618
20K → Half982-73#13618#13691
Half → 25K64337-273#13691#13964
25K → 30K86469-383#13964#14347
30K → 20M62155-93#14347#14440
20M → 21M17344-327#14440#14767
21M → 35K6040+20#14767#14747
35K → 23M72101-29#14747#14776
23M → 24M7345+28#14776#14748
24M → 40K7447+27#14748#14721
40K → 25.2M2732-5#14721#14726
25.2M → Finish5447+7#14726#14719
TOTALS11723339-2167
📊

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