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BOSTON MARATHON 2023

Thomas Sullivan

Bib: 6584•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:02
Rank: #4336
Start → 5K
21:02 | 6:46/mi
10K· 6.21 mi
41:20
Rank: #3542 (+794)
5K → 10K
20:18 | 6:32/mi
15K· 9.32 mi
1:01:15
Rank: #2976 (+566)
10K → 15K
19:55 | 6:25/mi
20K· 12.43 mi
1:21:17
Rank: #2670 (+306)
15K → 20K
20:02 | 6:27/mi
Half· 13.11 mi
1:25:34
Rank: #2622 (+48)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:41:04
Rank: #2440 (+182)
Half → 25K
15:30 | 6:24/mi
30K· 18.64 mi
2:01:06
Rank: #2215 (+225)
25K → 30K
20:02 | 6:27/mi
20M
2:09:40
Rank: #2061 (+154)
30K → 20M
8:34 | 6:18/mi
21M
2:16:26
Rank: #1985 (+76)
20M → 21M
6:46 | 6:46/mi
35K· 21.75 mi
2:21:07
Rank: #1951 (+34)
21M → 35K
4:41 | 6:16/mi
23M
2:29:29
Rank: #1934 (+17)
35K → 23M
8:22 | 6:41/mi
24M
2:36:13
Rank: #1970 (-36)
23M → 24M
6:44 | 6:44/mi
40K· 24.85 mi
2:41:59
Rank: #1969 (+1)
24M → 40K
5:46 | 6:45/mi
25.2M
2:44:24
Rank: #1949 (+20)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:50:41
Rank: #1888 (+61)
25.2M → Finish
6:17 | 6:10/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:34
Pace6:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:25:07
Pace6:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4421:026:4621:02
6:46
-
10K
6.21 mi10:45:0241:206:3920:18
6:32
-0:14
15K
9.32 mi11:04:571:01:156:3419:55
6:25
-0:07
20K
12.43 mi11:24:591:21:176:3220:02
6:27
+0:02
Half
13.11 mi11:29:161:25:346:324:17
6:17
-0:10
25K
15.53 mi11:44:461:41:046:3015:30
6:24
+0:07
30K
18.64 mi12:04:482:01:066:3020:02
6:27
+0:03
20M
20.00 mi12:13:222:09:406:298:34
6:18
-0:09
21M
21.00 mi12:20:082:16:266:306:46
6:46
+0:28
35K
21.75 mi12:24:492:21:076:294:41
6:16
-0:30
23M
23.00 mi12:33:112:29:296:308:22
6:41
+0:25
24M
24.00 mi12:39:552:36:136:316:44
6:44
+0:03
40K
24.85 mi12:45:412:41:596:315:46
6:45
+0:01
25.2M
25.20 mi12:48:062:44:246:312:25
7:00
+0:15
Finish
26.22 mi12:54:232:50:416:316:17
6:10
-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

6:10 /mi

Average Pace

6:31 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:16

99% of race

Time at Steady Pace

2:25

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:31 /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 mi10:24:4421:026:4621:02
6:46
#4336
10K
6.21 mi10:45:0241:206:3920:18
6:32
#3542
15K
9.32 mi11:04:571:01:156:3419:55
6:25
#2976
20K
12.43 mi11:24:591:21:176:3220:02
6:27
#2670
Half
13.11 mi11:29:161:25:346:324:17
6:17
#2622
25K
15.53 mi11:44:461:41:046:3015:30
6:24
#2440
30K
18.64 mi12:04:482:01:066:3020:02
6:27
#2215
20M
20.00 mi12:13:222:09:406:298:34
6:18
#2061
21M
21.00 mi12:20:082:16:266:306:46
6:46
#1985
35K
21.75 mi12:24:492:21:076:294:41
6:16
#1951
23M
23.00 mi12:33:112:29:296:308:22
6:41
#1934
24M
24.00 mi12:39:552:36:136:316:44
6:44
#1970
40K
24.85 mi12:45:412:41:596:315:46
6:45
#1969
25.2M
25.20 mi12:48:062:44:246:312:25
7:00
#1949
Finish
26.22 mi12:54:232:50:416:316:17
6:10
#1888
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4336404740472152(Top 8%)2065(Top 14%)2065(Top 39%)
10K6.21 mi3.10 mi3542+7943343+7043343+7042978(Top 11%)2842(Top 19%)2842(Top 54%)
15K9.32 mi3.11 mi2976+5662838+5052838+5052152(Top 8%)2065(Top 14%)2065(Top 39%)
20K12.43 mi3.11 mi2670+3062551+2872551+2872020(Top 8%)1939(Top 13%)1939(Top 37%)
Half13.11 mi0.68 mi2622+482505+462505+461712(Top 6%)1642(Top 11%)1642(Top 31%)
25K15.53 mi2.42 mi2440+1822338+1672338+1671695(Top 6%)1623(Top 11%)1623(Top 31%)
30K18.64 mi3.11 mi2215+2252125+2132125+2131376(Top 5%)1318(Top 9%)1318(Top 25%)
20M20.00 mi1.36 mi2061+1541976+1491976+149887(Top 3%)846(Top 6%)846(Top 16%)
21M21.00 mi1.00 mi1985+761901+751901+751316(Top 5%)1257(Top 8%)1257(Top 24%)
35K21.75 mi0.75 mi1951+341868+331868+331455(Top 5%)1381(Top 9%)1381(Top 26%)
23M23.00 mi1.25 mi1934+171853+151853+152089(Top 8%)1978(Top 13%)1978(Top 37%)
24M24.00 mi1.00 mi1970-361887-341887-343251(Top 12%)3006(Top 20%)3006(Top 57%)
40K24.85 mi0.85 mi1969+11885+21885+22529(Top 9%)2343(Top 15%)2343(Top 44%)
25.2M25.20 mi0.35 mi1949+201865+201865+201754(Top 7%)1647(Top 11%)1647(Top 31%)
Finish26.22 mi1.02 mi1888+611805+601805+601176(Top 4%)1120(Top 7%)1120(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2152

Males

2065

M18-39

2065

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2978

Males

2842

M18-39

2842

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2152

Males

2065

M18-39

2065

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2020

Males

1939

M18-39

1939

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1712

Males

1642

M18-39

1642

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1695

Males

1623

M18-39

1623

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1376

Males

1318

M18-39

1318

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

887

Males

846

M18-39

846

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1316

Males

1257

M18-39

1257

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1455

Males

1381

M18-39

1381

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2089

Males

1978

M18-39

1978

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3251

Males

3006

M18-39

3006

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2529

Males

2343

M18-39

2343

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1754

Males

1647

M18-39

1647

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1176

Males

1120

M18-39

1120

Passing Analysis

Category:
Athletes Passed
2604
Passed By
156
Net Change
+2448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4336
5K → 10K81521+794#4336#3542
10K → 15K5682+566#3542#2976
15K → 20K3071+306#2976#2670
20K → Half491+48#2670#2622
Half → 25K1875+182#2622#2440
25K → 30K2272+225#2440#2215
30K → 20M1540+154#2215#2061
20M → 21M804+76#2061#1985
21M → 35K406+34#1985#1951
35K → 23M4225+17#1951#1934
23M → 24M1450-36#1934#1970
24M → 40K2928+1#1970#1969
40K → 25.2M255+20#1969#1949
25.2M → Finish676+61#1949#1888
TOTALS2604156+2448
📊

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