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BOSTON MARATHON 2023

Tom Sheridan

Bib: 12311•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 26%
Gender (Male)
#0 / 15176
Top 40%
Masters (Masters Men)
#0 / 9891
Top 26%
Division (M45-49)
#0 / 2252
Top 34%
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
7:39/mi
23:47
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
47:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:10:31
↑ 67↓ 78
20K· 12.43 mi
7:18/mi
1:33:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:38:08
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:55:44
↑ 66↓ 880.2%
30K· 18.64 mi
7:17/mi
2:18:22
↑ 181↓ 1480.2%
20M
7:22/mi
2:28:23
↑ 64↓ 500.2%
21M
7:23/mi
2:35:46
↑ 106↓ 241.6%
35K· 21.75 mi
6:53/mi
2:40:55
↑ 17↓ 861.7%
23M
7:16/mi
2:50:01
↑ 23↓ 630.6%
24M
6:34/mi
2:56:35
↓ 821.3%
40K· 24.85 mi
7:02/mi
3:02:36
↓ 200.3%
25.2M
7:27/mi
3:05:10
↑ 13↓ 160.2%
Finish· 26.22 mi
6:42/mi
3:12:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:38:08
Pace7:29 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:33:52
Pace7:10 /mi
📊Negative Split: 4.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4423:477:3923:47
7:39
-
10K
6.21 mi11:15:2847:317:3923:44
7:38
-0:01
15K
9.32 mi11:38:281:10:317:3423:00
7:24
-0:14
20K
12.43 mi12:01:101:33:137:3022:42
7:18
-0:06
Half
13.11 mi12:06:051:38:087:294:55
7:12
-0:06
25K
15.53 mi12:23:411:55:447:2717:36
7:16
+0:04
30K
18.64 mi12:46:192:18:227:2522:38
7:17
+0:01
20M
20.00 mi12:56:202:28:237:2510:01
7:22
+0:05
21M
21.00 mi13:03:432:35:467:257:23
7:23
+0:01
35K
21.75 mi13:08:522:40:557:245:09
6:53
-0:30
23M
23.00 mi13:17:582:50:017:249:06
7:16
+0:23
24M
24.00 mi13:24:322:56:357:216:34
6:34
-0:42
40K
24.85 mi13:30:333:02:367:216:01
7:02
+0:28
25.2M
25.20 mi13:33:073:05:107:212:34
7:27
+0:25
Finish
26.22 mi13:39:573:12:007:206:50
6:42
-0:45

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

6:34 /mi

Average Pace

7:20 /mi

Slowest Pace

7:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:29

15% of race

Time at Steady Pace

2:42:31

85% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:19 /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 mi10:51:4423:477:3923:47
7:39
#11047
10K
6.21 mi11:15:2847:317:3923:44
7:38
#11317
15K
9.32 mi11:38:281:10:317:3423:00
7:24
#10618
20K
12.43 mi12:01:101:33:137:3022:42
7:18
#9835
Half
13.11 mi12:06:051:38:087:294:55
7:12
#9701
25K
15.53 mi12:23:411:55:447:2717:36
7:16
#9226
30K
18.64 mi12:46:192:18:227:2522:38
7:17
#8533
20M
20.00 mi12:56:202:28:237:2510:01
7:22
#8312
21M
21.00 mi13:03:432:35:467:257:23
7:23
#8008
35K
21.75 mi13:08:522:40:557:245:09
6:53
#7843
23M
23.00 mi13:17:582:50:017:249:06
7:16
#7627
24M
24.00 mi13:24:322:56:357:216:34
6:34
#7316
40K
24.85 mi13:30:333:02:367:216:01
7:02
#7169
25.2M
25.20 mi13:33:073:05:107:212:34
7:27
#7092
Finish
26.22 mi13:39:573:12:007:206:50
6:42
#6901
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi11047867486749337(Top 35%)7761(Top 51%)7761(Top 345%)
10K6.21 mi3.10 mi11317-2708798-1248798-12411661(Top 44%)8959(Top 59%)8959(Top 398%)
15K9.32 mi3.11 mi10618+6998474+3248474+3249337(Top 35%)7761(Top 51%)7761(Top 345%)
20K12.43 mi3.11 mi9835+7838052+4228052+4227819(Top 29%)6765(Top 45%)6765(Top 300%)
Half13.11 mi0.68 mi9701+1347980+727980+727843(Top 29%)6791(Top 45%)6791(Top 302%)
25K15.53 mi2.42 mi9226+4757680+3007680+3007003(Top 26%)6157(Top 41%)6157(Top 273%)
30K18.64 mi3.11 mi8533+6937212+4687212+4685941(Top 22%)5334(Top 35%)5334(Top 237%)
20M20.00 mi1.36 mi8312+2217043+1697043+1696041(Top 23%)5326(Top 35%)5326(Top 237%)
21M21.00 mi1.00 mi8008+3046847+1966847+1964081(Top 15%)3759(Top 25%)3759(Top 167%)
35K21.75 mi0.75 mi7843+1656733+1146733+1144707(Top 18%)4272(Top 28%)4272(Top 190%)
23M23.00 mi1.25 mi7627+2166575+1586575+1585152(Top 19%)4579(Top 30%)4579(Top 203%)
24M24.00 mi1.00 mi7316+3116348+2276348+2272423(Top 9%)2266(Top 15%)2266(Top 101%)
40K24.85 mi0.85 mi7169+1476235+1136235+1134056(Top 15%)3638(Top 24%)3638(Top 162%)
25.2M25.20 mi0.35 mi7092+776172+636172+633686(Top 14%)3314(Top 22%)3314(Top 147%)
Finish26.22 mi1.02 mi6901+1916013+1596013+1593572(Top 13%)3197(Top 21%)3197(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9337

Males

7761

M45-49

7761

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11661

Males

8959

M45-49

8959

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9337

Males

7761

M45-49

7761

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7819

Males

6765

M45-49

6765

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

7843

Males

6791

M45-49

6791

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7003

Males

6157

M45-49

6157

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

5941

Males

5334

M45-49

5334

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6041

Males

5326

M45-49

5326

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4081

Males

3759

M45-49

3759

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

4707

Males

4272

M45-49

4272

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

5152

Males

4579

M45-49

4579

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2423

Males

2266

M45-49

2266

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4056

Males

3638

M45-49

3638

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3686

Males

3314

M45-49

3314

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3572

Males

3197

M45-49

3197

Passing Analysis

Category:
Athletes Passed
4644*
Passed By
498
Net Change
+4146
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11047
5K → 10K185455-270#11047#11317
10K → 15K71516+699#11317#10618
15K → 20K784*1+783#10618#9835
20K → Half1351+134#9835#9701
Half → 25K4761+475#9701#9226
25K → 30K6952+693#9226#8533
30K → 20M2254+221#8533#8312
20M → 21M3073+304#8312#8008
21M → 35K1661+165#8008#7843
35K → 23M2204+216#7843#7627
23M → 24M3110+311#7627#7316
24M → 40K1514+147#7316#7169
40K → 25.2M814+77#7169#7092
25.2M → Finish1932+191#7092#6901
TOTALS4644*498+4146

* 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