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BOSTON MARATHON 2023

Gregory Schwartz

Bib: 7508•M

WA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:23
Rank: #17494
Start → 5K
8:30/mi
26:23 split
10K· 6.21 mi
54:40
Rank: #19659 (-2165)
5K → 10K
9:06/mi
28:17 split
15K· 9.32 mi
1:25:43
Rank: #21353 (-1694)
10K → 15K
10:00/mi
31:03 split
20K· 12.43 mi
1:53:04
Rank: #20772 (+581)
15K → 20K
8:48/mi
27:21 split
Half· 13.11 mi
1:58:43
Rank: #20598 (+174)
20K → Half
8:17/mi
5:39 split
25K· 15.53 mi
2:18:45
Rank: #19789 (+809)
Half → 25K
8:16/mi
20:02 split
30K· 18.64 mi
2:44:13
Rank: #18640 (+1149)
25K → 30K
8:12/mi
25:28 split
20M
2:58:17
Rank: #18946 (-306)
30K → 20M
10:21/mi
14:04 split
21M
3:07:13
Rank: #18616 (+330)
20M → 21M
8:56/mi
8:56 split
35K· 21.75 mi
3:14:12
Rank: #18639 (-23)
21M → 35K
9:20/mi
6:59 split
23M
3:24:24
Rank: #18237 (+402)
35K → 23M
8:09/mi
10:12 split
24M
3:32:29
Rank: #18001 (+236)
23M → 24M
8:05/mi
8:05 split
40K· 24.85 mi
3:39:44
Rank: #17844 (+157)
24M → 40K
8:29/mi
7:15 split
25.2M
3:42:52
Rank: #17777 (+67)
40K → 25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:50:44
Rank: #17507 (+270)
25.2M → Finish
7:43/mi
7:52 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:58:43
Pace9:03 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:52:01
Pace8:33 /mi
📊Negative Split: 5.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5026:238:3026:23
8:30
-
10K
6.21 mi11:21:0754:408:4828:17
9:06
+0:36
15K
9.32 mi11:52:101:25:439:1231:03
10:00
+0:54
20K
12.43 mi12:19:311:53:049:0627:21
8:48
-1:12
Half
13.11 mi12:25:101:58:439:035:39
8:17
-0:31
25K
15.53 mi12:45:122:18:458:5620:02
8:16
-0:01
30K
18.64 mi13:10:402:44:138:4925:28
8:12
-0:04
20M
20.00 mi13:24:442:58:178:5514:04
10:21
+2:09
21M
21.00 mi13:33:403:07:138:558:56
8:56
-1:25
35K
21.75 mi13:40:393:14:128:566:59
9:20
+0:24
23M
23.00 mi13:50:513:24:248:5310:12
8:09
-1:11
24M
24.00 mi13:58:563:32:298:518:05
8:05
-0:04
40K
24.85 mi14:06:113:39:448:507:15
8:29
+0:24
25.2M
25.20 mi14:09:193:42:528:513:08
9:05
+0:36
Finish
26.22 mi14:17:113:50:448:487:52
7:43
-1:22

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

7:43 /mi

Average Pace

8:48 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:57

7% of race

Time at Steady Pace

2:02:20

53% of race

Time at Slower Pace

1:32:27

40% of race

Average Pace: 8:48 /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 mi10:52:5026:238:3026:23
8:30
#17494
10K
6.21 mi11:21:0754:408:4828:17
9:06
#19659
15K
9.32 mi11:52:101:25:439:1231:03
10:00
#21353
20K
12.43 mi12:19:311:53:049:0627:21
8:48
#20772
Half
13.11 mi12:25:101:58:439:035:39
8:17
#20598
25K
15.53 mi12:45:122:18:458:5620:02
8:16
#19789
30K
18.64 mi13:10:402:44:138:4925:28
8:12
#18640
20M
20.00 mi13:24:442:58:178:5514:04
10:21
#18946
21M
21.00 mi13:33:403:07:138:558:56
8:56
#18616
35K
21.75 mi13:40:393:14:128:566:59
9:20
#18639
23M
23.00 mi13:50:513:24:248:5310:12
8:09
#18237
24M
24.00 mi13:58:563:32:298:518:05
8:05
#18001
40K
24.85 mi14:06:113:39:448:507:15
8:29
#17844
25.2M
25.20 mi14:09:193:42:528:513:08
9:05
#17777
Finish
26.22 mi14:17:113:50:448:487:52
7:43
#17507
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17494112251122523487(Top 88%)13864(Top 91%)13864(Top 262%)
10K6.21 mi3.10 mi19659-216512072-84712072-84721274(Top 80%)12822(Top 84%)12822(Top 243%)
15K9.32 mi3.11 mi21353-169412856-78412856-78423487(Top 88%)13864(Top 91%)13864(Top 262%)
20K12.43 mi3.11 mi20772+58112604+25212604+25218680(Top 70%)11756(Top 77%)11756(Top 222%)
Half13.11 mi0.68 mi20598+17412530+7412530+7416341(Top 61%)10827(Top 71%)10827(Top 205%)
25K15.53 mi2.42 mi19789+80912167+36312167+36314690(Top 55%)10036(Top 66%)10036(Top 190%)
30K18.64 mi3.11 mi18640+114911678+48911678+48912329(Top 46%)8943(Top 59%)8943(Top 169%)
20M20.00 mi1.36 mi18946-30611796-11811796-11821388(Top 80%)12729(Top 84%)12729(Top 241%)
21M21.00 mi1.00 mi18616+33011656+14011656+14013026(Top 49%)9059(Top 60%)9059(Top 171%)
35K21.75 mi0.75 mi18639-2311665-911665-919266(Top 72%)11712(Top 77%)11712(Top 222%)
23M23.00 mi1.25 mi18237+40211466+19911466+19910808(Top 41%)7885(Top 52%)7885(Top 149%)
24M24.00 mi1.00 mi18001+23611351+11511351+11511820(Top 44%)8320(Top 55%)8320(Top 157%)
40K24.85 mi0.85 mi17844+15711287+6411287+6413198(Top 50%)8883(Top 59%)8883(Top 168%)
25.2M25.20 mi0.35 mi17777+6711251+3611251+3612995(Top 49%)8775(Top 58%)8775(Top 166%)
Finish26.22 mi1.02 mi17507+27011117+13411117+13410100(Top 38%)7354(Top 48%)7354(Top 139%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

23487

Males

13864

M18-39

13864

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21274

Males

12822

M18-39

12822

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

23487

Males

13864

M18-39

13864

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18680

Males

11756

M18-39

11756

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16341

Males

10827

M18-39

10827

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14690

Males

10036

M18-39

10036

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12329

Males

8943

M18-39

8943

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21388

Males

12729

M18-39

12729

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13026

Males

9059

M18-39

9059

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

19266

Males

11712

M18-39

11712

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10808

Males

7885

M18-39

7885

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11820

Males

8320

M18-39

8320

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13198

Males

8883

M18-39

8883

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12995

Males

8775

M18-39

8775

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10100

Males

7354

M18-39

7354

Passing Analysis

Category:
Athletes Passed
4274
Passed By
4287
Net Change
-13
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17494
5K → 10K162181-2165#17494#19659
10K → 15K71701-1694#19659#21353
15K → 20K5876+581#21353#20772
20K → Half1740+174#20772#20598
Half → 25K8090+809#20598#19789
25K → 30K11490+1149#19789#18640
30K → 20M25331-306#18640#18946
20M → 21M3300+330#18946#18616
21M → 35K3760-23#18616#18639
35K → 23M4031+402#18639#18237
23M → 24M2360+236#18237#18001
24M → 40K1592+157#18001#17844
40K → 25.2M714+67#17844#17777
25.2M → Finish2711+270#17777#17507
TOTALS42744287-13
📊

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