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BOSTON MARATHON 2026

Guangfeng Yi

Bib: 21584β€’M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 44%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 46%
Age Group (M65-69)
#0 / 774
Top 4%
Race Day Weather
51Β°/41Β°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
23:30
3.11 mi
Rank: #13294
Start β†’ 5K
23:30 | 7:34/mi
10K
46:43
6.21 mi
Rank: #12988 (+306)
5K β†’ 10K
23:13 | 7:29/mi
15K
1:10:19
9.32 mi
Rank: #13171 (-183)
10K β†’ 15K
23:36 | 7:36/mi
20K
1:34:06
12.43 mi
Rank: #13206 (-35)
15K β†’ 20K
23:47 | 7:40/mi
HALF
1:39:16
13.11 mi
Rank: #13229 (-23)
20K β†’ HALF
5:10 | 7:35/mi
25K
1:58:00
15.53 mi
Rank: #13211 (+18)
HALF β†’ 25K
18:44 | 7:44/mi
30K
2:22:38
18.64 mi
Rank: #13131 (+80)
25K β†’ 30K
24:38 | 7:56/mi
20M
2:33:24
20.00 mi
Rank: #13034 (+97)
30K β†’ 20M
10:46 | 7:56/mi
21M
2:41:53
21.00 mi
Rank: #13021 (+13)
20M β†’ 21M
8:29 | 8:29/mi
35K
2:47:41
21.75 mi
Rank: #13005 (+16)
21M β†’ 35K
5:48 | 7:46/mi
23M
2:57:33
23.00 mi
Rank: #12890 (+115)
35K β†’ 23M
9:52 | 7:54/mi
24M
3:05:13
24.00 mi
Rank: #12800 (+90)
23M β†’ 24M
7:40 | 7:40/mi
40K
3:11:54
24.85 mi
Rank: #12711 (+89)
24M β†’ 40K
6:41 | 7:50/mi
25.2M
3:14:51
25.20 mi
Rank: #12687 (+24)
40K β†’ 25.2M
2:57 | 8:34/mi
FINISH
3:22:47
26.22 mi
Rank: #12692 (-5)
25.2M β†’ FINISH
7:56 | 7:48/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:16
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:43:31
Pace7:54 /mi
πŸ“ŠPositive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4323:307:3423:30
7:34
-
10K
6.21 mi11:47:5646:437:3223:13
7:29
-0:05
15K
9.32 mi12:11:321:10:197:3323:36
7:36
+0:07
20K
12.43 mi12:35:191:34:067:3523:47
7:40
+0:04
HALF
13.11 mi12:40:291:39:167:355:10
7:35
-0:05
25K
15.53 mi12:59:131:58:007:3618:44
7:44
+0:09
30K
18.64 mi13:23:512:22:387:4024:38
7:56
+0:12
20M
20.00 mi13:34:372:33:247:4110:46
7:56
0:00
21M
21.00 mi13:43:062:41:537:438:29
8:29
+0:33
35K
21.75 mi13:48:542:47:417:435:48
7:46
-0:43
23M
23.00 mi13:58:462:57:337:449:52
7:54
+0:08
24M
24.00 mi14:06:263:05:137:447:40
7:40
-0:14
40K
24.85 mi14:13:073:11:547:446:41
7:50
+0:10
25.2M
25.20 mi14:16:043:14:517:442:57
8:34
+0:44
FINISH
26.22 mi14:24:003:22:477:457:56
7:48
-0:46

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

7:29 /mi

Average Pace

7:44 /mi

Slowest Pace

8:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

3:11:21

94% of race

Time at Steady Pace

11:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:24:4323:307:3423:30
7:34
#13294
10K
6.21 mi11:47:5646:437:3223:13
7:29
#12988
15K
9.32 mi12:11:321:10:197:3323:36
7:36
#13171
20K
12.43 mi12:35:191:34:067:3523:47
7:40
#13206
HALF
13.11 mi12:40:291:39:167:355:10
7:35
#13229
25K
15.53 mi12:59:131:58:007:3618:44
7:44
#13211
30K
18.64 mi13:23:512:22:387:4024:38
7:56
#13131
20M
20.00 mi13:34:372:33:247:4110:46
7:56
#13034
21M
21.00 mi13:43:062:41:537:438:29
8:29
#13021
35K
21.75 mi13:48:542:47:417:435:48
7:46
#13005
23M
23.00 mi13:58:462:57:337:449:52
7:54
#12890
24M
24.00 mi14:06:263:05:137:447:40
7:40
#12800
40K
24.85 mi14:13:073:11:547:446:41
7:50
#12711
25.2M
25.20 mi14:16:043:14:517:442:57
8:34
#12687
FINISH
26.22 mi14:24:003:22:477:457:56
7:48
#12692
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi132949578957813617(Top 47%)9634(Top 59%)9634(Top 1245%)
10K6.21 mi3.10 mi12988+3069424+1549424+15412678(Top 44%)9270(Top 57%)9270(Top 1198%)
15K9.32 mi3.11 mi13171-1839480-569480-5613617(Top 47%)9634(Top 59%)9634(Top 1245%)
20K12.43 mi3.11 mi13206-359460+209460+2013300(Top 46%)9423(Top 58%)9423(Top 1217%)
HALF13.11 mi0.68 mi13229-239468-89468-813573(Top 47%)9606(Top 59%)9606(Top 1241%)
25K15.53 mi2.42 mi13211+189446+229446+2213227(Top 46%)9314(Top 57%)9314(Top 1203%)
30K18.64 mi3.11 mi13131+809354+929354+9212959(Top 45%)9093(Top 56%)9093(Top 1175%)
20M20.00 mi1.36 mi13034+979286+689286+6812283(Top 42%)8692(Top 53%)8692(Top 1123%)
21M21.00 mi1.00 mi13021+139262+249262+2412989(Top 45%)8896(Top 54%)8896(Top 1149%)
35K21.75 mi0.75 mi13005+169241+219241+2112667(Top 44%)8725(Top 53%)8725(Top 1127%)
23M23.00 mi1.25 mi12890+1159179+629179+6211615(Top 40%)8164(Top 50%)8164(Top 1055%)
24M24.00 mi1.00 mi12800+909121+589121+5811319(Top 39%)7943(Top 49%)7943(Top 1026%)
40K24.85 mi0.85 mi12711+899051+709051+7011142(Top 38%)7776(Top 48%)7776(Top 1005%)
25.2M25.20 mi0.35 mi12687+249025+269025+2611937(Top 41%)8078(Top 49%)8078(Top 1044%)
FINISH26.22 mi1.02 mi12692-59001+249001+2413638(Top 47%)8851(Top 54%)8851(Top 1144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
Γ—21
+97ft-345ft

Overall

13617

Males

9634

M65-69

9634

5K→10K

3.1 - 6.2 mi

Top 44%
Γ—5
+79ft-138ft

Overall

12678

Males

9270

M65-69

9270

10K→15K

6.2 - 9.3 mi

Top 47%
Γ—3
+67ft-78ft

Overall

13617

Males

9634

M65-69

9634

15K→20K

9.3 - 12.4 mi

Top 46%
Γ—5
+106ft-86ft

Overall

13300

Males

9423

M65-69

9423

20K→HALF

12.4 - 13.1 mi

Top 47%
Γ—2
+19ft-37ft

Overall

13573

Males

9606

M65-69

9606

HALF→25K

13.1 - 15.5 mi

Top 46%
Γ—4
+66ft-88ft

Overall

13227

Males

9314

M65-69

9314

25K→30K

15.5 - 18.6 mi

Top 45%
Γ—9
+181ft-148ft

Overall

12959

Males

9093

M65-69

9093

30K→20M

18.6 - 20.0 mi

Top 42%
Γ—5
+64ft-50ft

Overall

12283

Males

8692

M65-69

8692

20M→21M

20.0 - 21.0 mi

Top 45%
Γ—8
+106ft-24ft

Overall

12989

Males

8896

M65-69

8896

21M→35K

21.0 - 21.8 mi

Top 44%
Γ—7
+17ft-86ft

Overall

12667

Males

8725

M65-69

8725

35K→23M

21.8 - 23.0 mi

Top 40%
Γ—5
+23ft-63ft

Overall

11615

Males

8164

M65-69

8164

23M→24M

23.0 - 24.0 mi

Top 39%
Γ—6
+12ft-82ft

Overall

11319

Males

7943

M65-69

7943

24M→40K

24.0 - 24.9 mi

Top 38%
Γ—1
+6ft-20ft

Overall

11142

Males

7776

M65-69

7776

40K→25.2M

24.9 - 25.2 mi

Top 41%
Γ—1
+13ft-16ft

Overall

11937

Males

8078

M65-69

8078

25.2M→FINISH

25.2 - 26.2 mi

Top 47%
Γ—2
+22ft-21ft

Overall

13638

Males

8851

M65-69

8851

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1907
Passed By
1305
Net Change
+602
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#13294
5K β†’ 10K459153+306#13294#12988
10K β†’ 15K130313-183#12988#13171
15K β†’ 20K139174-35#13171#13206
20K β†’ HALF3255-23#13206#13229
HALF β†’ 25K126108+18#13229#13211
25K β†’ 30K217137+80#13211#13131
30K β†’ 20M15457+97#13131#13034
20M β†’ 21M9178+13#13034#13021
21M β†’ 35K6145+16#13021#13005
35K β†’ 23M15136+115#13005#12890
23M β†’ 24M11626+90#12890#12800
24M β†’ 40K11223+89#12800#12711
40K β†’ 25.2M4016+24#12711#12687
25.2M β†’ FINISH7984-5#12687#12692
TOTALS19071305+602
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing