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BOSTON MARATHON 2023

Chase Zollinger

Bib: 3902•M

UT

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

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
28:54
Rank: #21533
Start → 5K
28:54 | 9:18/mi
10K· 6.21 mi
56:54
Rank: #21267 (+266)
5K → 10K
28:00 | 9:01/mi
15K· 9.32 mi
1:24:12
Rank: #20718 (+549)
10K → 15K
27:18 | 8:47/mi
20K· 12.43 mi
1:51:54
Rank: #20389 (+329)
15K → 20K
27:42 | 8:55/mi
Half· 13.11 mi
1:57:59
Rank: #20359 (+30)
20K → Half
6:05 | 8:55/mi
25K· 15.53 mi
2:20:37
Rank: #20367 (-8)
Half → 25K
22:38 | 9:20/mi
30K· 18.64 mi
2:52:34
Rank: #20658 (-291)
25K → 30K
31:57 | 10:17/mi
20M
3:06:53
Rank: #20756 (-98)
30K → 20M
14:19 | 10:32/mi
21M
3:19:49
Rank: #21075 (-319)
20M → 21M
12:56 | 12:56/mi
35K· 21.75 mi
3:28:17
Rank: #21226 (-151)
21M → 35K
8:28 | 11:19/mi
23M
3:41:59
Rank: #21297 (-71)
35K → 23M
13:42 | 10:57/mi
24M
3:52:20
Rank: #21305 (-8)
23M → 24M
10:21 | 10:21/mi
40K· 24.85 mi
4:01:58
Rank: #21400 (-95)
24M → 40K
9:38 | 11:16/mi
25.2M
4:05:45
Rank: #21362 (+38)
40K → 25.2M
3:47 | 10:58/mi
Finish· 26.22 mi
4:15:35
Rank: #21326 (+36)
25.2M → Finish
9:50 | 9:39/mi
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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:59
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:17:36
Pace10:30 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1728:549:1828:54
9:18
-
10K
6.21 mi11:53:1756:549:0928:00
9:01
-0:17
15K
9.32 mi12:20:351:24:129:0227:18
8:47
-0:14
20K
12.43 mi12:48:171:51:549:0027:42
8:55
+0:08
Half
13.11 mi12:54:221:57:599:006:05
8:55
0:00
25K
15.53 mi13:17:002:20:379:0322:38
9:20
+0:25
30K
18.64 mi13:48:572:52:349:1531:57
10:17
+0:57
20M
20.00 mi14:03:163:06:539:2114:19
10:32
+0:15
21M
21.00 mi14:16:123:19:499:3112:56
12:56
+2:24
35K
21.75 mi14:24:403:28:179:358:28
11:19
-1:37
23M
23.00 mi14:38:223:41:599:3913:42
10:57
-0:22
24M
24.00 mi14:48:433:52:209:4110:21
10:21
-0:36
40K
24.85 mi14:58:214:01:589:449:38
11:16
+0:55
25.2M
25.20 mi15:02:084:05:459:453:47
10:58
-0:18
Finish
26.22 mi15:11:584:15:359:459:50
9:39
-1:19

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:47 /mi

Average Pace

9:45 /mi

Slowest Pace

12:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:30:27

59% of race

Time at Steady Pace

56:37

22% of race

Time at Slower Pace

48:31

19% of race

Average Pace: 9:45 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:25:1728:549:1828:54
9:18
#21533
10K
6.21 mi11:53:1756:549:0928:00
9:01
#21267
15K
9.32 mi12:20:351:24:129:0227:18
8:47
#20718
20K
12.43 mi12:48:171:51:549:0027:42
8:55
#20389
Half
13.11 mi12:54:221:57:599:006:05
8:55
#20359
25K
15.53 mi13:17:002:20:379:0322:38
9:20
#20367
30K
18.64 mi13:48:572:52:349:1531:57
10:17
#20658
20M
20.00 mi14:03:163:06:539:2114:19
10:32
#20756
21M
21.00 mi14:16:123:19:499:3112:56
12:56
#21075
35K
21.75 mi14:24:403:28:179:358:28
11:19
#21226
23M
23.00 mi14:38:223:41:599:3913:42
10:57
#21297
24M
24.00 mi14:48:433:52:209:4110:21
10:21
#21305
40K
24.85 mi14:58:214:01:589:449:38
11:16
#21400
25.2M
25.20 mi15:02:084:05:459:453:47
10:58
#21362
Finish
26.22 mi15:11:584:15:359:459:50
9:39
#21326
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21533128611286119435(Top 73%)12065(Top 80%)12065(Top 228%)
10K6.21 mi3.10 mi21267+26612788+7312788+7320923(Top 79%)12686(Top 84%)12686(Top 240%)
15K9.32 mi3.11 mi20718+54912562+22612562+22619435(Top 73%)12065(Top 80%)12065(Top 228%)
20K12.43 mi3.11 mi20389+32912430+13212430+13219305(Top 73%)12009(Top 79%)12009(Top 227%)
Half13.11 mi0.68 mi20359+3012421+912421+920014(Top 75%)12308(Top 81%)12308(Top 233%)
25K15.53 mi2.42 mi20367-812436-1512436-1520297(Top 76%)12415(Top 82%)12415(Top 235%)
30K18.64 mi3.11 mi20658-29112550-11412550-11421738(Top 82%)12959(Top 85%)12959(Top 245%)
20M20.00 mi1.36 mi20756-9812584-3412584-3421813(Top 82%)12911(Top 85%)12911(Top 244%)
21M21.00 mi1.00 mi21075-31912691-10712691-10724002(Top 90%)13891(Top 92%)13891(Top 263%)
35K21.75 mi0.75 mi21226-15112757-6612757-6623811(Top 89%)13742(Top 91%)13742(Top 260%)
23M23.00 mi1.25 mi21297-7112778-2112778-2122222(Top 83%)13020(Top 86%)13020(Top 246%)
24M24.00 mi1.00 mi21305-812772+612772+621660(Top 81%)12716(Top 84%)12716(Top 241%)
40K24.85 mi0.85 mi21400-9512810-3812810-3822837(Top 86%)13234(Top 87%)13234(Top 250%)
25.2M25.20 mi0.35 mi21362+3812788+2212788+2220374(Top 77%)12101(Top 80%)12101(Top 229%)
Finish26.22 mi1.02 mi21326+3612765+2312765+2320624(Top 77%)12243(Top 81%)12243(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19435

Males

12065

M18-39

12065

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20923

Males

12686

M18-39

12686

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19435

Males

12065

M18-39

12065

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

19305

Males

12009

M18-39

12009

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

20014

Males

12308

M18-39

12308

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20297

Males

12415

M18-39

12415

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21738

Males

12959

M18-39

12959

30K→20M

18.6 - 20.0 mi

Top 82%
×5stories
+64ft-50ft

Overall

21813

Males

12911

M18-39

12911

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

24002

Males

13891

M18-39

13891

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23811

Males

13742

M18-39

13742

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22222

Males

13020

M18-39

13020

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21660

Males

12716

M18-39

12716

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22837

Males

13234

M18-39

13234

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20374

Males

12101

M18-39

12101

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2stories
+22ft-21ft

Overall

20624

Males

12243

M18-39

12243

Passing Analysis

Category:
Athletes Passed
1871
Passed By
1664
Net Change
+207
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21533
5K → 10K439173+266#21533#21267
10K → 15K57223+549#21267#20718
15K → 20K36334+329#20718#20389
20K → Half4212+30#20389#20359
Half → 25K114122-8#20359#20367
25K → 30K69360-291#20367#20658
30K → 20M45143-98#20658#20756
20M → 21M11330-319#20756#21075
21M → 35K10161-151#21075#21226
35K → 23M47118-71#21226#21297
23M → 24M4149-8#21297#21305
24M → 40K17112-95#21305#21400
40K → 25.2M435+38#21400#21362
25.2M → Finish5822+36#21362#21326
TOTALS18711664+207
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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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