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BOSTON MARATHON 2023

Mark Southgate

Bib: 16843•M

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 37%
Division (M55-59)
#0 / 1422
Top 18%
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
46:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:09:47
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:33:11
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:38:09
↑ 19↓ 370.5%
25K· 15.53 mi
7:24/mi
1:56:06
↑ 66↓ 880.2%
30K· 18.64 mi
7:52/mi
2:20:33
↑ 181↓ 1480.2%
20M
7:49/mi
2:31:10
↑ 64↓ 500.2%
21M
8:09/mi
2:39:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:36/mi
2:45:00
↑ 17↓ 861.7%
23M
7:37/mi
2:54:32
↑ 23↓ 630.6%
24M
7:39/mi
3:02:11
↓ 821.3%
40K· 24.85 mi
7:47/mi
3:08:50
↓ 200.3%
25.2M
8:13/mi
3:11:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:29/mi
3:19:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:09
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:41:09
Pace7:43 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4123:427:3823:42
7:38
-
10K
6.21 mi11:43:4546:467:3223:04
7:25
-0:13
15K
9.32 mi12:06:461:09:477:2923:01
7:25
0:00
20K
12.43 mi12:30:101:33:117:3023:24
7:32
+0:07
Half
13.11 mi12:35:081:38:097:294:58
7:17
-0:15
25K
15.53 mi12:53:051:56:067:2817:57
7:24
+0:07
30K
18.64 mi13:17:322:20:337:3224:27
7:52
+0:28
20M
20.00 mi13:28:092:31:107:3310:37
7:49
-0:03
21M
21.00 mi13:36:182:39:197:358:09
8:09
+0:20
35K
21.75 mi13:41:592:45:007:355:41
7:36
-0:33
23M
23.00 mi13:51:312:54:327:359:32
7:37
+0:01
24M
24.00 mi13:59:103:02:117:357:39
7:39
+0:02
40K
24.85 mi14:05:493:08:507:366:39
7:47
+0:08
25.2M
25.20 mi14:08:393:11:407:362:50
8:13
+0:26
Finish
26.22 mi14:16:173:19:187:367:38
7:29
-0:44

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

7:17 /mi

Average Pace

7:36 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:19

94% of race

Time at Steady Pace

10:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi11:20:4123:427:3823:42
7:38
#10776
10K
6.21 mi11:43:4546:467:3223:04
7:25
#10274
15K
9.32 mi12:06:461:09:477:2923:01
7:25
#9913
20K
12.43 mi12:30:101:33:117:3023:24
7:32
#9814
Half
13.11 mi12:35:081:38:097:294:58
7:17
#9724
25K
15.53 mi12:53:051:56:067:2817:57
7:24
#9415
30K
18.64 mi13:17:322:20:337:3224:27
7:52
#9488
20M
20.00 mi13:28:092:31:107:3310:37
7:49
#9428
21M
21.00 mi13:36:182:39:197:358:09
8:09
#9317
35K
21.75 mi13:41:592:45:007:355:41
7:36
#9296
23M
23.00 mi13:51:312:54:327:359:32
7:37
#9142
24M
24.00 mi13:59:103:02:117:357:39
7:39
#9103
40K
24.85 mi14:05:493:08:507:366:39
7:47
#9052
25.2M
25.20 mi14:08:393:11:407:362:50
8:13
#9023
Finish
26.22 mi14:16:173:19:187:367:38
7:29
#8972
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi10776854885489394(Top 35%)7798(Top 51%)7798(Top 548%)
10K6.21 mi3.10 mi10274+5028297+2518297+2519834(Top 37%)8075(Top 53%)8075(Top 568%)
15K9.32 mi3.11 mi9913+3618112+1858112+1859394(Top 35%)7798(Top 51%)7798(Top 548%)
20K12.43 mi3.11 mi9814+998040+728040+729549(Top 36%)7826(Top 52%)7826(Top 550%)
Half13.11 mi0.68 mi9724+907992+487992+488433(Top 32%)7172(Top 47%)7172(Top 504%)
25K15.53 mi2.42 mi9415+3097785+2077785+2078051(Top 30%)6836(Top 45%)6836(Top 481%)
30K18.64 mi3.11 mi9488-737792-77792-79880(Top 37%)7763(Top 51%)7763(Top 546%)
20M20.00 mi1.36 mi9428+607736+567736+568943(Top 34%)7157(Top 47%)7157(Top 503%)
21M21.00 mi1.00 mi9317+1117645+917645+918291(Top 31%)6643(Top 44%)6643(Top 467%)
35K21.75 mi0.75 mi9296+217614+317614+319216(Top 35%)7193(Top 47%)7193(Top 506%)
23M23.00 mi1.25 mi9142+1547496+1187496+1187189(Top 27%)5949(Top 39%)5949(Top 418%)
24M24.00 mi1.00 mi9103+397456+407456+408727(Top 33%)6745(Top 44%)6745(Top 474%)
40K24.85 mi0.85 mi9052+517412+447412+448502(Top 32%)6554(Top 43%)6554(Top 461%)
25.2M25.20 mi0.35 mi9023+297386+267386+267760(Top 29%)6036(Top 40%)6036(Top 424%)
Finish26.22 mi1.02 mi8972+517330+567330+568466(Top 32%)6442(Top 42%)6442(Top 453%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9394

Males

7798

M55-59

7798

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9834

Males

8075

M55-59

8075

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9394

Males

7798

M55-59

7798

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9549

Males

7826

M55-59

7826

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8433

Males

7172

M55-59

7172

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8051

Males

6836

M55-59

6836

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9880

Males

7763

M55-59

7763

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

8943

Males

7157

M55-59

7157

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8291

Males

6643

M55-59

6643

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9216

Males

7193

M55-59

7193

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7189

Males

5949

M55-59

5949

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8727

Males

6745

M55-59

6745

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8502

Males

6554

M55-59

6554

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7760

Males

6036

M55-59

6036

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8466

Males

6442

M55-59

6442

Passing Analysis

Category:
Athletes Passed
2552*
Passed By
748
Net Change
+1804
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10776
5K → 10K615*113+502#10776#10274
10K → 15K402*41+361#10274#9913
15K → 20K206*107+99#9913#9814
20K → Half966+90#9814#9724
Half → 25K32112+309#9724#9415
25K → 30K155*228-73#9415#9488
30K → 20M11151+60#9488#9428
20M → 21M14332+111#9428#9317
21M → 35K5231+21#9317#9296
35K → 23M17218+154#9296#9142
23M → 24M7637+39#9142#9103
24M → 40K7423+51#9103#9052
40K → 25.2M389+29#9052#9023
25.2M → Finish9140+51#9023#8972
TOTALS2552*748+1804

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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