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BOSTON MARATHON 2026

Oliver Zhang

Bib: 18531•M

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
25:37
3.11 mi
Rank: #18507
Start → 5K
25:37 | 8:15/mi
10K
50:39
6.21 mi
Rank: #18105 (+402)
5K → 10K
25:02 | 8:04/mi
15K
1:15:09
9.32 mi
Rank: #17512 (+593)
10K → 15K
24:30 | 7:54/mi
20K
1:39:57
12.43 mi
Rank: #17114 (+398)
15K → 20K
24:48 | 7:59/mi
HALF
1:45:10
13.11 mi
Rank: #16980 (+134)
20K → HALF
5:13 | 7:40/mi
25K
2:05:18
15.53 mi
Rank: #17045 (-65)
HALF → 25K
20:08 | 8:19/mi
30K
2:35:00
18.64 mi
Rank: #18122 (-1077)
25K → 30K
29:42 | 9:34/mi
20M
2:48:51
20.00 mi
Rank: #18636 (-514)
30K → 20M
13:51 | 10:12/mi
21M
2:58:16
21.00 mi
Rank: #18584 (+52)
20M → 21M
9:25 | 9:25/mi
35K
3:04:42
21.75 mi
Rank: #18572 (+12)
21M → 35K
6:26 | 8:36/mi
23M
3:15:55
23.00 mi
Rank: #18545 (+27)
35K → 23M
11:13 | 8:58/mi
24M
3:25:25
24.00 mi
Rank: #18703 (-158)
23M → 24M
9:30 | 9:30/mi
40K
3:34:09
24.85 mi
Rank: #18934 (-231)
24M → 40K
8:44 | 10:13/mi
25.2M
3:38:01
25.20 mi
Rank: #19053 (-119)
40K → 25.2M
3:52 | 11:13/mi
FINISH
3:48:09
26.22 mi
Rank: #19354 (-301)
25.2M → FINISH
10:08 | 9:57/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:45:10
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time2:02:59
Pace9:23 /mi
📊Positive Split: 16.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:5725:378:1525:37
8:15
-
10K
6.21 mi11:55:5950:398:1025:02
8:04
-0:11
15K
9.32 mi12:20:291:15:098:0424:30
7:54
-0:10
20K
12.43 mi12:45:171:39:578:0324:48
7:59
+0:05
HALF
13.11 mi12:50:301:45:108:025:13
7:40
-0:19
25K
15.53 mi13:10:382:05:188:0420:08
8:19
+0:39
30K
18.64 mi13:40:202:35:008:1929:42
9:34
+1:15
20M
20.00 mi13:54:112:48:518:2713:51
10:12
+0:38
21M
21.00 mi14:03:362:58:168:309:25
9:25
-0:47
35K
21.75 mi14:10:023:04:428:306:26
8:36
-0:49
23M
23.00 mi14:21:153:15:558:3211:13
8:58
+0:22
24M
24.00 mi14:30:453:25:258:349:30
9:30
+0:32
40K
24.85 mi14:39:293:34:098:378:44
10:13
+0:43
25.2M
25.20 mi14:43:213:38:018:403:52
11:13
+1:00
FINISH
26.22 mi14:53:293:48:098:4310:08
9:57
-1:16

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

7:40 /mi

Average Pace

8:42 /mi

Slowest Pace

11:13 /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

2:05:18

55% of race

Time at Steady Pace

27:04

12% of race

Time at Slower Pace

1:15:47

33% of race

Average Pace: 8:42 /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 mi11:30:5725:378:1525:37
8:15
#18507
10K
6.21 mi11:55:5950:398:1025:02
8:04
#18105
15K
9.32 mi12:20:291:15:098:0424:30
7:54
#17512
20K
12.43 mi12:45:171:39:578:0324:48
7:59
#17114
HALF
13.11 mi12:50:301:45:108:025:13
7:40
#16980
25K
15.53 mi13:10:382:05:188:0420:08
8:19
#17045
30K
18.64 mi13:40:202:35:008:1929:42
9:34
#18122
20M
20.00 mi13:54:112:48:518:2713:51
10:12
#18636
21M
21.00 mi14:03:362:58:168:309:25
9:25
#18584
35K
21.75 mi14:10:023:04:428:306:26
8:36
#18572
23M
23.00 mi14:21:153:15:558:3211:13
8:58
#18545
24M
24.00 mi14:30:453:25:258:349:30
9:30
#18703
40K
24.85 mi14:39:293:34:098:378:44
10:13
#18934
25.2M
25.20 mi14:43:213:38:018:403:52
11:13
#19053
FINISH
26.22 mi14:53:293:48:098:4310:08
9:57
#19354
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi18507116351163516060(Top 55%)10620(Top 65%)10620(Top 712%)
10K6.21 mi3.10 mi18105+40211469+16611469+16617666(Top 61%)11291(Top 69%)11291(Top 757%)
15K9.32 mi3.11 mi17512+59311213+25611213+25616060(Top 55%)10620(Top 65%)10620(Top 712%)
20K12.43 mi3.11 mi17114+39811046+16711046+16715983(Top 55%)10549(Top 65%)10549(Top 708%)
HALF13.11 mi0.68 mi16980+13410987+5910987+5914318(Top 49%)9948(Top 61%)9948(Top 667%)
25K15.53 mi2.42 mi17045-6511003-1611003-1617438(Top 60%)11123(Top 68%)11123(Top 746%)
30K18.64 mi3.11 mi18122-107711438-43511438-43521823(Top 75%)13058(Top 80%)13058(Top 876%)
20M20.00 mi1.36 mi18636-51411642-20411642-20423076(Top 80%)13568(Top 83%)13568(Top 910%)
21M21.00 mi1.00 mi18584+5211606+3611606+3618132(Top 62%)11206(Top 69%)11206(Top 752%)
35K21.75 mi0.75 mi18572+1211593+1311593+1318112(Top 62%)11101(Top 68%)11101(Top 745%)
23M23.00 mi1.25 mi18545+2711554+3911554+3918303(Top 63%)11126(Top 68%)11126(Top 746%)
24M24.00 mi1.00 mi18703-15811599-4511599-4521327(Top 73%)12537(Top 77%)12537(Top 841%)
40K24.85 mi0.85 mi18934-23111683-8411683-8422468(Top 77%)13041(Top 80%)13041(Top 875%)
25.2M25.20 mi0.35 mi19053-11911723-4011723-4022844(Top 79%)13228(Top 81%)13228(Top 887%)
FINISH26.22 mi1.02 mi19354-30111850-12711850-12723662(Top 82%)13621(Top 83%)13621(Top 914%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21
+97ft-345ft

Overall

16060

Males

10620

M55-59

10620

5K→10K

3.1 - 6.2 mi

Top 61%
×5
+79ft-138ft

Overall

17666

Males

11291

M55-59

11291

10K→15K

6.2 - 9.3 mi

Top 55%
×3
+67ft-78ft

Overall

16060

Males

10620

M55-59

10620

15K→20K

9.3 - 12.4 mi

Top 55%
×5
+106ft-86ft

Overall

15983

Males

10549

M55-59

10549

20K→HALF

12.4 - 13.1 mi

Top 49%
×2
+19ft-37ft

Overall

14318

Males

9948

M55-59

9948

HALF→25K

13.1 - 15.5 mi

Top 60%
×4
+66ft-88ft

Overall

17438

Males

11123

M55-59

11123

25K→30K

15.5 - 18.6 mi

Top 75%
×9
+181ft-148ft

Overall

21823

Males

13058

M55-59

13058

30K→20M

18.6 - 20.0 mi

Top 80%
×5
+64ft-50ft

Overall

23076

Males

13568

M55-59

13568

20M→21M

20.0 - 21.0 mi

Top 62%
×8
+106ft-24ft

Overall

18132

Males

11206

M55-59

11206

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

18112

Males

11101

M55-59

11101

35K→23M

21.8 - 23.0 mi

Top 63%
×5
+23ft-63ft

Overall

18303

Males

11126

M55-59

11126

23M→24M

23.0 - 24.0 mi

Top 73%
×6
+12ft-82ft

Overall

21327

Males

12537

M55-59

12537

24M→40K

24.0 - 24.9 mi

Top 77%
×1
+6ft-20ft

Overall

22468

Males

13041

M55-59

13041

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1
+13ft-16ft

Overall

22844

Males

13228

M55-59

13228

25.2M→FINISH

25.2 - 26.2 mi

Top 82%
×2
+22ft-21ft

Overall

23662

Males

13621

M55-59

13621

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2225*
Passed By
1663
Net Change
-847
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18507
5K → 10K539*137+402#18507#18105
10K → 15K614*21+593#18105#17512
15K → 20K425*27+398#17512#17114
20K → HALF1373+134#17114#16980
HALF → 25K115180-65#16980#17045
25K → 30K36200-1077#17045#18122
30K → 20M25200-514#18122#18636
20M → 21M10755+52#18636#18584
21M → 35K6452+12#18584#18572
35K → 23M10073+27#18572#18545
23M → 24M29187-158#18545#18703
24M → 40K15200-231#18703#18934
40K → 25.2M9128-119#18934#19053
25.2M → FINISH10200-301#19053#19354
TOTALS2225*1663-847

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

📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing