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BOSTON MARATHON 2026

Guangtao Xun

Bib: 14269•M

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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 (M50-54)
#0 / 1868
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
26:09
3.11 mi
Rank: #19612
Start → 5K
26:09 | 8:26/mi
10K
53:42
6.21 mi
Rank: #21003 (-1391)
5K → 10K
27:33 | 8:53/mi
15K
1:20:34
9.32 mi
Rank: #20974 (+29)
10K → 15K
26:52 | 8:39/mi
20K
1:48:16
12.43 mi
Rank: #21098 (-124)
15K → 20K
27:42 | 8:55/mi
HALF
1:54:02
13.11 mi
Rank: #21045 (+53)
20K → HALF
5:46 | 8:28/mi
25K
2:19:14
15.53 mi
Rank: #22074 (-1029)
HALF → 25K
25:12 | 10:24/mi
30K
2:56:51
18.64 mi
Rank: #23597 (-1523)
25K → 30K
37:37 | 12:07/mi
20M
3:13:21
20.00 mi
Rank: #23922 (-325)
30K → 20M
16:30 | 12:09/mi
21M
3:27:51
21.00 mi
Rank: #24337 (-415)
20M → 21M
14:30 | 14:30/mi
35K
3:36:23
21.75 mi
Rank: #24417 (-80)
21M → 35K
8:32 | 11:25/mi
23M
3:49:45
23.00 mi
Rank: #24382 (+35)
35K → 23M
13:22 | 10:41/mi
24M
4:00:04
24.00 mi
Rank: #24334 (+48)
23M → 24M
10:19 | 10:19/mi
40K
4:09:48
24.85 mi
Rank: #24345 (-11)
24M → 40K
9:44 | 11:24/mi
25.2M
4:13:55
25.20 mi
Rank: #24358 (-13)
40K → 25.2M
4:07 | 11:57/mi
FINISH
4:24:05
26.22 mi
Rank: #24326 (+32)
25.2M → FINISH
10:10 | 9:59/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:54:02
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time2:30:03
Pace11:27 /mi
📊Positive Split: 31.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4426:098:2626:09
8:26
-
10K
6.21 mi11:23:1753:428:3927:33
8:53
+0:27
15K
9.32 mi11:50:091:20:348:3926:52
8:39
-0:14
20K
12.43 mi12:17:511:48:168:4327:42
8:55
+0:16
HALF
13.11 mi12:23:371:54:028:425:46
8:28
-0:27
25K
15.53 mi12:48:492:19:148:5825:12
10:24
+1:56
30K
18.64 mi13:26:262:56:519:3037:37
12:07
+1:43
20M
20.00 mi13:42:563:13:219:4116:30
12:09
+0:02
21M
21.00 mi13:57:263:27:519:5414:30
14:30
+2:21
35K
21.75 mi14:05:583:36:239:578:32
11:25
-3:05
23M
23.00 mi14:19:203:49:4510:0013:22
10:41
-0:44
24M
24.00 mi14:29:394:00:0410:0110:19
10:19
-0:22
40K
24.85 mi14:39:234:09:4810:049:44
11:24
+1:05
25.2M
25.20 mi14:43:304:13:5510:054:07
11:57
+0:33
FINISH
26.22 mi14:53:404:24:0510:0510:10
9:59
-1:58

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

8:26 /mi

Average Pace

10:05 /mi

Slowest Pace

14:30 /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

1:54:02

43% of race

Time at Steady Pace

59:03

22% of race

Time at Slower Pace

1:31:00

34% of race

Average Pace: 10:04 /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 mi10:55:4426:098:2626:09
8:26
#19612
10K
6.21 mi11:23:1753:428:3927:33
8:53
#21003
15K
9.32 mi11:50:091:20:348:3926:52
8:39
#20974
20K
12.43 mi12:17:511:48:168:4327:42
8:55
#21098
HALF
13.11 mi12:23:371:54:028:425:46
8:28
#21045
25K
15.53 mi12:48:492:19:148:5825:12
10:24
#22074
30K
18.64 mi13:26:262:56:519:3037:37
12:07
#23597
20M
20.00 mi13:42:563:13:219:4116:30
12:09
#23922
21M
21.00 mi13:57:263:27:519:5414:30
14:30
#24337
35K
21.75 mi14:05:583:36:239:578:32
11:25
#24417
23M
23.00 mi14:19:203:49:4510:0013:22
10:41
#24382
24M
24.00 mi14:29:394:00:0410:0110:19
10:19
#24334
40K
24.85 mi14:39:234:09:4810:049:44
11:24
#24345
25.2M
25.20 mi14:43:304:13:5510:054:07
11:57
#24358
FINISH
26.22 mi14:53:404:24:0510:0510:10
9:59
#24326
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi19612121101211020904(Top 72%)12752(Top 78%)12752(Top 683%)
10K6.21 mi3.10 mi21003-139112763-65312763-65322249(Top 77%)13375(Top 82%)13375(Top 716%)
15K9.32 mi3.11 mi20974+2912756+712756+720904(Top 72%)12752(Top 78%)12752(Top 683%)
20K12.43 mi3.11 mi21098-12412806-5012806-5021546(Top 74%)13029(Top 80%)13029(Top 697%)
HALF13.11 mi0.68 mi21045+5312782+2412782+2420019(Top 69%)12360(Top 76%)12360(Top 662%)
25K15.53 mi2.42 mi22074-102913286-50413286-50425205(Top 87%)14764(Top 90%)14764(Top 790%)
30K18.64 mi3.11 mi23597-152313996-71013996-71026903(Top 93%)15401(Top 94%)15401(Top 824%)
20M20.00 mi1.36 mi23922-32514160-16414160-16426581(Top 92%)15190(Top 93%)15190(Top 813%)
21M21.00 mi1.00 mi24337-41514343-18314343-18327727(Top 96%)15702(Top 96%)15702(Top 841%)
35K21.75 mi0.75 mi24417-8014369-2614369-2625908(Top 89%)14821(Top 91%)14821(Top 793%)
23M23.00 mi1.25 mi24382+3514335+3414335+3423786(Top 82%)13770(Top 84%)13770(Top 737%)
24M24.00 mi1.00 mi24334+4814286+4914286+4923651(Top 81%)13687(Top 84%)13687(Top 733%)
40K24.85 mi0.85 mi24345-1114273+1314273+1324921(Top 86%)14237(Top 87%)14237(Top 762%)
25.2M25.20 mi0.35 mi24358-1314274-114274-124317(Top 84%)13933(Top 85%)13933(Top 746%)
FINISH26.22 mi1.02 mi24326+3214249+2514249+2523767(Top 82%)13677(Top 84%)13677(Top 732%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21
+97ft-345ft

Overall

20904

Males

12752

M50-54

12752

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22249

Males

13375

M50-54

13375

10K→15K

6.2 - 9.3 mi

Top 72%
×3
+67ft-78ft

Overall

20904

Males

12752

M50-54

12752

15K→20K

9.3 - 12.4 mi

Top 74%
×5
+106ft-86ft

Overall

21546

Males

13029

M50-54

13029

20K→HALF

12.4 - 13.1 mi

Top 69%
×2
+19ft-37ft

Overall

20019

Males

12360

M50-54

12360

HALF→25K

13.1 - 15.5 mi

Top 87%
×4
+66ft-88ft

Overall

25205

Males

14764

M50-54

14764

25K→30K

15.5 - 18.6 mi

Top 93%
×9
+181ft-148ft

Overall

26903

Males

15401

M50-54

15401

30K→20M

18.6 - 20.0 mi

Top 92%
×5
+64ft-50ft

Overall

26581

Males

15190

M50-54

15190

20M→21M

20.0 - 21.0 mi

Top 96%
×8
+106ft-24ft

Overall

27727

Males

15702

M50-54

15702

21M→35K

21.0 - 21.8 mi

Top 89%
×7
+17ft-86ft

Overall

25908

Males

14821

M50-54

14821

35K→23M

21.8 - 23.0 mi

Top 82%
×5
+23ft-63ft

Overall

23786

Males

13770

M50-54

13770

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23651

Males

13687

M50-54

13687

24M→40K

24.0 - 24.9 mi

Top 86%
×1
+6ft-20ft

Overall

24921

Males

14237

M50-54

14237

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1
+13ft-16ft

Overall

24317

Males

13933

M50-54

13933

25.2M→FINISH

25.2 - 26.2 mi

Top 82%
×2
+22ft-21ft

Overall

23767

Males

13677

M50-54

13677

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
727
Passed By
1640
Net Change
-4714
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19612
5K → 10K31200-1391#19612#21003
10K → 15K200171+29#21003#20974
15K → 20K120200-124#20974#21098
20K → HALF596+53#21098#21045
HALF → 25K10200-1029#21045#22074
25K → 30K11200-1523#22074#23597
30K → 20M17200-325#23597#23922
20M → 21M5200-415#23922#24337
21M → 35K1898-80#24337#24417
35K → 23M7338+35#24417#24382
23M → 24M7022+48#24382#24334
24M → 40K4354-11#24334#24345
40K → 25.2M1528-13#24345#24358
25.2M → FINISH5523+32#24358#24326
TOTALS7271640-4714
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing