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BOSTON MARATHON 2026

Tsehsiao Liu

Bib: 13163β€’M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 37%
Gender (Male)
#0 / 16340
Top 49%
Masters (Masters Men)
#0 / 10617
Top 39%
Age Group (M45-49)
#0 / 2413
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
23:11
3.11 mi
Rank: #12445
Start β†’ 5K
23:11 | 7:28/mi
10K
45:50
6.21 mi
Rank: #11765 (+680)
5K β†’ 10K
22:39 | 7:18/mi
15K
1:08:29
9.32 mi
Rank: #11469 (+296)
10K β†’ 15K
22:39 | 7:18/mi
20K
1:31:21
12.43 mi
Rank: #11289 (+180)
15K β†’ 20K
22:52 | 7:22/mi
HALF
1:36:18
13.11 mi
Rank: #11258 (+31)
20K β†’ HALF
4:57 | 7:16/mi
25K
1:54:19
15.53 mi
Rank: #11171 (+87)
HALF β†’ 25K
18:01 | 7:26/mi
30K
2:18:05
18.64 mi
Rank: #11071 (+100)
25K β†’ 30K
23:46 | 7:39/mi
20M
2:28:27
20.00 mi
Rank: #10985 (+86)
30K β†’ 20M
10:22 | 7:38/mi
21M
2:36:18
21.00 mi
Rank: #10809 (+176)
20M β†’ 21M
7:51 | 7:51/mi
35K
2:41:38
21.75 mi
Rank: #10678 (+131)
21M β†’ 35K
5:20 | 7:08/mi
23M
2:51:05
23.00 mi
Rank: #10529 (+149)
35K β†’ 23M
9:27 | 7:34/mi
24M
2:58:40
24.00 mi
Rank: #10504 (+25)
23M β†’ 24M
7:35 | 7:35/mi
40K
3:05:20
24.85 mi
Rank: #10513 (-9)
24M β†’ 40K
6:40 | 7:48/mi
25.2M
3:08:18
25.20 mi
Rank: #10534 (-21)
40K β†’ 25.2M
2:58 | 8:37/mi
FINISH
3:16:12
26.22 mi
Rank: #10620 (-86)
25.2M β†’ FINISH
7:54 | 7:46/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:36:18
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:39:54
Pace7:38 /mi
πŸ“ŠPositive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0023:117:2823:11
7:28
-
10K
6.21 mi11:14:3945:507:2322:39
7:18
-0:10
15K
9.32 mi11:37:181:08:297:2122:39
7:18
0:00
20K
12.43 mi12:00:101:31:217:2222:52
7:22
+0:04
HALF
13.11 mi12:05:071:36:187:214:57
7:16
-0:06
25K
15.53 mi12:23:081:54:197:2218:01
7:26
+0:10
30K
18.64 mi12:46:542:18:057:2523:46
7:39
+0:13
20M
20.00 mi12:57:162:28:277:2610:22
7:38
-0:01
21M
21.00 mi13:05:072:36:187:277:51
7:51
+0:13
35K
21.75 mi13:10:272:41:387:265:20
7:08
-0:43
23M
23.00 mi13:19:542:51:057:279:27
7:34
+0:26
24M
24.00 mi13:27:292:58:407:277:35
7:35
+0:01
40K
24.85 mi13:34:093:05:207:286:40
7:48
+0:13
25.2M
25.20 mi13:37:073:08:187:292:58
8:37
+0:49
FINISH
26.22 mi13:45:013:16:127:307:54
7:46
-0:51

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

7:08 /mi

Average Pace

7:29 /mi

Slowest Pace

8:37 /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

1:18:27

40% of race

Time at Steady Pace

1:32:22

47% of race

Time at Slower Pace

25:23

13% of race

Average Pace: 7:29 /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 mi10:52:0023:117:2823:11
7:28
#12445
10K
6.21 mi11:14:3945:507:2322:39
7:18
#11765
15K
9.32 mi11:37:181:08:297:2122:39
7:18
#11469
20K
12.43 mi12:00:101:31:217:2222:52
7:22
#11289
HALF
13.11 mi12:05:071:36:187:214:57
7:16
#11258
25K
15.53 mi12:23:081:54:197:2218:01
7:26
#11171
30K
18.64 mi12:46:542:18:057:2523:46
7:39
#11071
20M
20.00 mi12:57:162:28:277:2610:22
7:38
#10985
21M
21.00 mi13:05:072:36:187:277:51
7:51
#10809
35K
21.75 mi13:10:272:41:387:265:20
7:08
#10678
23M
23.00 mi13:19:542:51:057:279:27
7:34
#10529
24M
24.00 mi13:27:292:58:407:277:35
7:35
#10504
40K
24.85 mi13:34:093:05:207:286:40
7:48
#10513
25.2M
25.20 mi13:37:073:08:187:292:58
8:37
#10534
FINISH
26.22 mi13:45:013:16:127:307:54
7:46
#10620
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi124459221922110947(Top 38%)8460(Top 52%)8460(Top 351%)
10K6.21 mi3.10 mi11765+6808920+3018920+30111043(Top 38%)8553(Top 52%)8553(Top 354%)
15K9.32 mi3.11 mi11469+2968746+1748746+17410947(Top 38%)8460(Top 52%)8460(Top 351%)
20K12.43 mi3.11 mi11289+1808634+1128634+11210733(Top 37%)8271(Top 51%)8271(Top 343%)
HALF13.11 mi0.68 mi11258+318615+198615+1910802(Top 37%)8384(Top 51%)8384(Top 347%)
25K15.53 mi2.42 mi11171+878551+648551+6410811(Top 37%)8231(Top 50%)8231(Top 341%)
30K18.64 mi3.11 mi11071+1008448+1038448+10310835(Top 37%)8116(Top 50%)8116(Top 336%)
20M20.00 mi1.36 mi10985+868382+668382+6610061(Top 35%)7611(Top 47%)7611(Top 315%)
21M21.00 mi1.00 mi10809+1768275+1078275+1078857(Top 31%)6868(Top 42%)6868(Top 285%)
35K21.75 mi0.75 mi10678+1318190+858190+858056(Top 28%)6465(Top 40%)6465(Top 268%)
23M23.00 mi1.25 mi10529+1498078+1128078+1129225(Top 32%)6999(Top 43%)6999(Top 290%)
24M24.00 mi1.00 mi10504+258047+318047+3110709(Top 37%)7649(Top 47%)7649(Top 317%)
40K24.85 mi0.85 mi10513-98035+128035+1210979(Top 38%)7690(Top 47%)7690(Top 319%)
25.2M25.20 mi0.35 mi10534-218037-28037-212207(Top 42%)8189(Top 50%)8189(Top 339%)
FINISH26.22 mi1.02 mi10620-868056-198056-1913370(Top 46%)8728(Top 53%)8728(Top 362%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
Γ—21
+97ft-345ft

Overall

10947

Males

8460

M45-49

8460

5K→10K

3.1 - 6.2 mi

Top 38%
Γ—5
+79ft-138ft

Overall

11043

Males

8553

M45-49

8553

10K→15K

6.2 - 9.3 mi

Top 38%
Γ—3
+67ft-78ft

Overall

10947

Males

8460

M45-49

8460

15K→20K

9.3 - 12.4 mi

Top 37%
Γ—5
+106ft-86ft

Overall

10733

Males

8271

M45-49

8271

20K→HALF

12.4 - 13.1 mi

Top 37%
Γ—2
+19ft-37ft

Overall

10802

Males

8384

M45-49

8384

HALF→25K

13.1 - 15.5 mi

Top 37%
Γ—4
+66ft-88ft

Overall

10811

Males

8231

M45-49

8231

25K→30K

15.5 - 18.6 mi

Top 37%
Γ—9
+181ft-148ft

Overall

10835

Males

8116

M45-49

8116

30K→20M

18.6 - 20.0 mi

Top 35%
Γ—5
+64ft-50ft

Overall

10061

Males

7611

M45-49

7611

20M→21M

20.0 - 21.0 mi

Top 31%
Γ—8
+106ft-24ft

Overall

8857

Males

6868

M45-49

6868

21M→35K

21.0 - 21.8 mi

Top 28%
Γ—7
+17ft-86ft

Overall

8056

Males

6465

M45-49

6465

35K→23M

21.8 - 23.0 mi

Top 32%
Γ—5
+23ft-63ft

Overall

9225

Males

6999

M45-49

6999

23M→24M

23.0 - 24.0 mi

Top 37%
Γ—6
+12ft-82ft

Overall

10709

Males

7649

M45-49

7649

24M→40K

24.0 - 24.9 mi

Top 38%
Γ—1
+6ft-20ft

Overall

10979

Males

7690

M45-49

7690

40K→25.2M

24.9 - 25.2 mi

Top 42%
Γ—1
+13ft-16ft

Overall

12207

Males

8189

M45-49

8189

25.2M→FINISH

25.2 - 26.2 mi

Top 46%
Γ—2
+22ft-21ft

Overall

13370

Males

8728

M45-49

8728

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2676*
Passed By
851
Net Change
+1825
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#12445
5K β†’ 10K746*66+680#12445#11765
10K β†’ 15K366*70+296#11765#11469
15K β†’ 20K247*67+180#11469#11289
20K β†’ HALF4514+31#11289#11258
HALF β†’ 25K16174+87#11258#11171
25K β†’ 30K245*145+100#11171#11071
30K β†’ 20M13448+86#11071#10985
20M β†’ 21M19620+176#10985#10809
21M β†’ 35K1409+131#10809#10678
35K β†’ 23M18536+149#10678#10529
23M β†’ 24M8560+25#10529#10504
24M β†’ 40K6473-9#10504#10513
40K β†’ 25.2M2445-21#10513#10534
25.2M β†’ FINISH38124-86#10534#10620
TOTALS2676*851+1825

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

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