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BOSTON MARATHON 2023

Jeffrey St. George

Bib: 31484•M

SC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 45%
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
26:10
Rank: #17030
Start → 5K
26:10 | 8:25/mi
10K· 6.21 mi
49:04
Rank: #13550 (+3480)
5K → 10K
22:54 | 7:22/mi
15K· 9.32 mi
1:12:00
Rank: #11998 (+1552)
10K → 15K
22:56 | 7:23/mi
20K· 12.43 mi
1:35:07
Rank: #11138 (+860)
15K → 20K
23:07 | 7:26/mi
Half· 13.11 mi
1:40:13
Rank: #11075 (+63)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:59:04
Rank: #11020 (+55)
Half → 25K
18:51 | 7:46/mi
30K· 18.64 mi
2:23:53
Rank: #10906 (+114)
25K → 30K
24:49 | 7:59/mi
20M
2:34:47
Rank: #10835 (+71)
30K → 20M
10:54 | 8:01/mi
21M
2:43:49
Rank: #11008 (-173)
20M → 21M
9:02 | 9:02/mi
35K· 21.75 mi
2:49:24
Rank: #10888 (+120)
21M → 35K
5:35 | 7:28/mi
23M
2:59:30
Rank: #10828 (+60)
35K → 23M
10:06 | 8:04/mi
24M
3:07:40
Rank: #10896 (-68)
23M → 24M
8:10 | 8:10/mi
40K· 24.85 mi
3:14:35
Rank: #10863 (+33)
24M → 40K
6:55 | 8:05/mi
25.2M
3:17:35
Rank: #10859 (+4)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:25:36
Rank: #10852 (+7)
25.2M → Finish
8:01 | 7:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:13
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:45:23
Pace8:02 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:2826:108:2526:10
8:25
-
10K
6.21 mi12:08:2249:047:5422:54
7:22
-1:03
15K
9.32 mi12:31:181:12:007:4322:56
7:23
+0:01
20K
12.43 mi12:54:251:35:077:3923:07
7:26
+0:03
Half
13.11 mi12:59:311:40:137:395:06
7:29
+0:03
25K
15.53 mi13:18:221:59:047:4018:51
7:46
+0:17
30K
18.64 mi13:43:112:23:537:4324:49
7:59
+0:13
20M
20.00 mi13:54:052:34:477:4410:54
8:01
+0:02
21M
21.00 mi14:03:072:43:497:489:02
9:02
+1:01
35K
21.75 mi14:08:422:49:247:475:35
7:28
-1:34
23M
23.00 mi14:18:482:59:307:4810:06
8:04
+0:36
24M
24.00 mi14:26:583:07:407:498:10
8:10
+0:06
40K
24.85 mi14:33:533:14:357:506:55
8:05
-0:05
25.2M
25.20 mi14:36:533:17:357:503:00
8:42
+0:37
Finish
26.22 mi14:44:543:25:367:518:01
7:52
-0:50

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

7:22 /mi

Average Pace

7:51 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:38

39% of race

Time at Steady Pace

1:27:46

43% of race

Time at Slower Pace

38:12

19% of race

Average Pace: 7:50 /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 mi11:45:2826:108:2526:10
8:25
#17030
10K
6.21 mi12:08:2249:047:5422:54
7:22
#13550
15K
9.32 mi12:31:181:12:007:4322:56
7:23
#11998
20K
12.43 mi12:54:251:35:077:3923:07
7:26
#11138
Half
13.11 mi12:59:311:40:137:395:06
7:29
#11075
25K
15.53 mi13:18:221:59:047:4018:51
7:46
#11020
30K
18.64 mi13:43:112:23:537:4324:49
7:59
#10906
20M
20.00 mi13:54:052:34:477:4410:54
8:01
#10835
21M
21.00 mi14:03:072:43:497:489:02
9:02
#11008
35K
21.75 mi14:08:422:49:247:475:35
7:28
#10888
23M
23.00 mi14:18:482:59:307:4810:06
8:04
#10828
24M
24.00 mi14:26:583:07:407:498:10
8:10
#10896
40K
24.85 mi14:33:533:14:357:506:55
8:05
#10863
25.2M
25.20 mi14:36:533:17:357:503:00
8:42
#10859
Finish
26.22 mi14:44:543:25:367:518:01
7:52
#10852
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1703011059110599187(Top 35%)7661(Top 50%)7661(Top 342%)
10K6.21 mi3.10 mi13550+34809759+13009759+13009386(Top 35%)7796(Top 51%)7796(Top 348%)
15K9.32 mi3.11 mi11998+15529088+6719088+6719187(Top 35%)7661(Top 50%)7661(Top 342%)
20K12.43 mi3.11 mi11138+8608721+3678721+3678835(Top 33%)7406(Top 49%)7406(Top 330%)
Half13.11 mi0.68 mi11075+638690+318690+3110010(Top 38%)8120(Top 54%)8120(Top 362%)
25K15.53 mi2.42 mi11020+558637+538637+5310883(Top 41%)8443(Top 56%)8443(Top 377%)
30K18.64 mi3.11 mi10906+1148540+978540+9710789(Top 41%)8236(Top 54%)8236(Top 368%)
20M20.00 mi1.36 mi10835+718472+688472+6810409(Top 39%)7967(Top 52%)7967(Top 356%)
21M21.00 mi1.00 mi11008-1738529-578529-5713571(Top 51%)9298(Top 61%)9298(Top 415%)
35K21.75 mi0.75 mi10888+1208454+758454+758278(Top 31%)6679(Top 44%)6679(Top 298%)
23M23.00 mi1.25 mi10828+608399+558399+5510224(Top 38%)7605(Top 50%)7605(Top 339%)
24M24.00 mi1.00 mi10896-688407-88407-812340(Top 46%)8551(Top 56%)8551(Top 382%)
40K24.85 mi0.85 mi10863+338363+448363+4410623(Top 40%)7664(Top 51%)7664(Top 342%)
25.2M25.20 mi0.35 mi10859+48345+188345+1810705(Top 40%)7662(Top 50%)7662(Top 342%)
Finish26.22 mi1.02 mi10852+78314+318314+3111132(Top 42%)7856(Top 52%)7856(Top 351%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9187

Males

7661

M40-44

7661

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9386

Males

7796

M40-44

7796

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9187

Males

7661

M40-44

7661

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8835

Males

7406

M40-44

7406

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10010

Males

8120

M40-44

8120

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

10883

Males

8443

M40-44

8443

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10789

Males

8236

M40-44

8236

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10409

Males

7967

M40-44

7967

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13571

Males

9298

M40-44

9298

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8278

Males

6679

M40-44

6679

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10224

Males

7605

M40-44

7605

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12340

Males

8551

M40-44

8551

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10623

Males

7664

M40-44

7664

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10705

Males

7662

M40-44

7662

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11132

Males

7856

M40-44

7856

Passing Analysis

Category:
Athletes Passed
6971*
Passed By
793
Net Change
+6178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17030
5K → 10K34844+3480#17030#13550
10K → 15K15586+1552#13550#11998
15K → 20K8644+860#11998#11138
20K → Half674+63#11138#11075
Half → 25K13782+55#11075#11020
25K → 30K237123+114#11020#10906
30K → 20M122*51+71#10906#10835
20M → 21M29202-173#10835#11008
21M → 35K1233+120#11008#10888
35K → 23M11353+60#10888#10828
23M → 24M50118-68#10828#10896
24M → 40K7643+33#10896#10863
40K → 25.2M3834+4#10863#10859
25.2M → Finish7366+7#10859#10852
TOTALS6971*793+6178

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

📊

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