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BOSTON MARATHON 2023

Stephen South

Bib: 8790•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 37%
Masters (Masters Men)
#0 / 9891
Top 23%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:19
Rank: #5234
Start → 5K
21:19 | 6:52/mi
10K· 6.21 mi
42:57
Rank: #5906 (-672)
5K → 10K
21:38 | 6:58/mi
15K· 9.32 mi
1:04:30
Rank: #6003 (-97)
10K → 15K
21:33 | 6:56/mi
20K· 12.43 mi
1:26:11
Rank: #5952 (+51)
15K → 20K
21:41 | 6:59/mi
Half· 13.11 mi
1:30:47
Rank: #5885 (+67)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:47:57
Rank: #5904 (-19)
Half → 25K
17:10 | 7:05/mi
30K· 18.64 mi
2:10:14
Rank: #5730 (+174)
25K → 30K
22:17 | 7:10/mi
20M
2:20:10
Rank: #5698 (+32)
30K → 20M
9:56 | 7:19/mi
21M
2:27:55
Rank: #5673 (+25)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:33:24
Rank: #5712 (-39)
21M → 35K
5:29 | 7:20/mi
23M
2:43:42
Rank: #5910 (-198)
35K → 23M
10:18 | 8:13/mi
24M
2:51:55
Rank: #6098 (-188)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
2:58:57
Rank: #6229 (-131)
24M → 40K
7:02 | 8:13/mi
25.2M
3:01:49
Rank: #6238 (-9)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:09:22
Rank: #6267 (-29)
25.2M → Finish
7:33 | 7:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:47
Pace6:55 /mi
2nd Half
Distance13.11 mi
Time1:38:35
Pace7:31 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2721:196:5221:19
6:52
-
10K
6.21 mi11:08:0542:576:5521:38
6:58
+0:06
15K
9.32 mi11:29:381:04:306:5521:33
6:56
-0:02
20K
12.43 mi11:51:191:26:116:5621:41
6:59
+0:03
Half
13.11 mi11:55:551:30:476:554:36
6:45
-0:14
25K
15.53 mi12:13:051:47:576:5717:10
7:05
+0:20
30K
18.64 mi12:35:222:10:146:5922:17
7:10
+0:05
20M
20.00 mi12:45:182:20:107:009:56
7:19
+0:09
21M
21.00 mi12:53:032:27:557:037:45
7:45
+0:26
35K
21.75 mi12:58:322:33:247:035:29
7:20
-0:25
23M
23.00 mi13:08:502:43:427:0710:18
8:13
+0:53
24M
24.00 mi13:17:032:51:557:108:13
8:13
0:00
40K
24.85 mi13:24:052:58:577:127:02
8:13
0:00
25.2M
25.20 mi13:26:573:01:497:132:52
8:19
+0:06
Finish
26.22 mi13:34:303:09:227:147:33
7:25
-0:54

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

6:45 /mi

Average Pace

7:14 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:47

48% of race

Time at Steady Pace

1:02:25

33% of race

Time at Slower Pace

36:10

19% of race

Average Pace: 7:13 /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 mi10:46:2721:196:5221:19
6:52
#5234
10K
6.21 mi11:08:0542:576:5521:38
6:58
#5906
15K
9.32 mi11:29:381:04:306:5521:33
6:56
#6003
20K
12.43 mi11:51:191:26:116:5621:41
6:59
#5952
Half
13.11 mi11:55:551:30:476:554:36
6:45
#5885
25K
15.53 mi12:13:051:47:576:5717:10
7:05
#5904
30K
18.64 mi12:35:222:10:146:5922:17
7:10
#5730
20M
20.00 mi12:45:182:20:107:009:56
7:19
#5698
21M
21.00 mi12:53:032:27:557:037:45
7:45
#5673
35K
21.75 mi12:58:322:33:247:035:29
7:20
#5712
23M
23.00 mi13:08:502:43:427:0710:18
8:13
#5910
24M
24.00 mi13:17:032:51:557:108:13
8:13
#6098
40K
24.85 mi13:24:052:58:577:127:02
8:13
#6229
25.2M
25.20 mi13:26:573:01:497:132:52
8:19
#6238
Finish
26.22 mi13:34:303:09:227:147:33
7:25
#6267
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5234484848486181(Top 23%)5603(Top 37%)5603(Top 250%)
10K6.21 mi3.10 mi5906-6725414-5665414-5666572(Top 25%)5910(Top 39%)5910(Top 264%)
15K9.32 mi3.11 mi6003-975482-685482-686181(Top 23%)5603(Top 37%)5603(Top 250%)
20K12.43 mi3.11 mi5952+515435+475435+475865(Top 22%)5363(Top 35%)5363(Top 239%)
Half13.11 mi0.68 mi5885+675389+465389+464816(Top 18%)4478(Top 30%)4478(Top 200%)
25K15.53 mi2.42 mi5904-195406-175406-176018(Top 23%)5457(Top 36%)5457(Top 244%)
30K18.64 mi3.11 mi5730+1745255+1515255+1515349(Top 20%)4879(Top 32%)4879(Top 218%)
20M20.00 mi1.36 mi5698+325220+355220+355693(Top 21%)5068(Top 33%)5068(Top 226%)
21M21.00 mi1.00 mi5673+255197+235197+235898(Top 22%)5125(Top 34%)5125(Top 229%)
35K21.75 mi0.75 mi5712-395222-255222-257284(Top 27%)6057(Top 40%)6057(Top 270%)
23M23.00 mi1.25 mi5910-1985353-1315353-13111328(Top 43%)8129(Top 54%)8129(Top 363%)
24M24.00 mi1.00 mi6098-1885485-1325485-13212788(Top 48%)8746(Top 58%)8746(Top 390%)
40K24.85 mi0.85 mi6229-1315572-875572-8711474(Top 43%)8040(Top 53%)8040(Top 359%)
25.2M25.20 mi0.35 mi6238-9557255728288(Top 31%)6320(Top 42%)6320(Top 282%)
Finish26.22 mi1.02 mi6267-295584-125584-127820(Top 29%)6055(Top 40%)6055(Top 270%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6181

Males

5603

M40-44

5603

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6572

Males

5910

M40-44

5910

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6181

Males

5603

M40-44

5603

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5865

Males

5363

M40-44

5363

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4816

Males

4478

M40-44

4478

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6018

Males

5457

M40-44

5457

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5349

Males

4879

M40-44

4879

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5693

Males

5068

M40-44

5068

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5898

Males

5125

M40-44

5125

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7284

Males

6057

M40-44

6057

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11328

Males

8129

M40-44

8129

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12788

Males

8746

M40-44

8746

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11474

Males

8040

M40-44

8040

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8288

Males

6320

M40-44

6320

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7820

Males

6055

M40-44

6055

Passing Analysis

Category:
Athletes Passed
885
Passed By
1918
Net Change
-1033
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5234
5K → 10K32704-672#5234#5906
10K → 15K90187-97#5906#6003
15K → 20K12473+51#6003#5952
20K → Half681+67#5952#5885
Half → 25K6887-19#5885#5904
25K → 30K21743+174#5904#5730
30K → 20M6735+32#5730#5698
20M → 21M6540+25#5698#5673
21M → 35K2463-39#5673#5712
35K → 23M23221-198#5712#5910
23M → 24M23211-188#5910#6098
24M → 40K22153-131#6098#6229
40K → 25.2M1827-9#6229#6238
25.2M → Finish4473-29#6238#6267
TOTALS8851918-1033
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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