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BOSTON MARATHON 2026

Mei Xu

Bib: 21198•F

CA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 45%
Masters (Masters Women)
#0 / 6862
Top 31%
Age Group (F50-54)
#0 / 1233
Top 25%
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
26:28
3.11 mi
Rank: #20188
Start → 5K
26:28 | 8:32/mi
10K
52:00
6.21 mi
Rank: #19432 (+756)
5K → 10K
25:32 | 8:14/mi
15K
1:17:06
9.32 mi
Rank: #18840 (+592)
10K → 15K
25:06 | 8:05/mi
20K
1:42:28
12.43 mi
Rank: #18440 (+400)
15K → 20K
25:22 | 8:10/mi
HALF
1:47:57
13.11 mi
Rank: #18379 (+61)
20K → HALF
5:29 | 8:03/mi
25K
2:07:45
15.53 mi
Rank: #18086 (+293)
HALF → 25K
19:48 | 8:10/mi
30K
2:33:45
18.64 mi
Rank: #17692 (+394)
25K → 30K
26:00 | 8:23/mi
20M
2:45:06
20.00 mi
Rank: #17500 (+192)
30K → 20M
11:21 | 8:22/mi
21M
2:53:50
21.00 mi
Rank: #17323 (+177)
20M → 21M
8:44 | 8:44/mi
35K
2:59:45
21.75 mi
Rank: #17177 (+146)
21M → 35K
5:55 | 7:55/mi
23M
3:09:41
23.00 mi
Rank: #16865 (+312)
35K → 23M
9:56 | 7:57/mi
24M
3:17:30
24.00 mi
Rank: #16661 (+204)
23M → 24M
7:49 | 7:49/mi
40K
3:24:14
24.85 mi
Rank: #16455 (+206)
24M → 40K
6:44 | 7:53/mi
25.2M
3:27:10
25.20 mi
Rank: #16365 (+90)
40K → 25.2M
2:56 | 8:31/mi
FINISH
3:35:04
26.22 mi
Rank: #16245 (+120)
25.2M → FINISH
7:54 | 7:46/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:47:57
Pace8:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:47:07
Pace8:11 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:2126:288:3226:28
8:32
-
10K
6.21 mi11:54:5352:008:2325:32
8:14
-0:18
15K
9.32 mi12:19:591:17:068:1725:06
8:05
-0:09
20K
12.43 mi12:45:211:42:288:1525:22
8:10
+0:05
HALF
13.11 mi12:50:501:47:578:155:29
8:03
-0:07
25K
15.53 mi13:10:382:07:458:1419:48
8:10
+0:07
30K
18.64 mi13:36:382:33:458:1526:00
8:23
+0:13
20M
20.00 mi13:47:592:45:068:1611:21
8:22
-0:01
21M
21.00 mi13:56:432:53:508:178:44
8:44
+0:22
35K
21.75 mi14:02:382:59:458:165:55
7:55
-0:49
23M
23.00 mi14:12:343:09:418:159:56
7:57
+0:02
24M
24.00 mi14:20:233:17:308:147:49
7:49
-0:08
40K
24.85 mi14:27:073:24:148:146:44
7:53
+0:04
25.2M
25.20 mi14:30:033:27:108:142:56
8:31
+0:38
FINISH
26.22 mi14:37:573:35:048:137:54
7:46
-0:45

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

7:46 /mi

Average Pace

8:13 /mi

Slowest Pace

8:44 /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

3:26:20

96% of race

Time at Steady Pace

8:44

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:12 /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 mi11:29:2126:288:3226:28
8:32
#20188
10K
6.21 mi11:54:5352:008:2325:32
8:14
#19432
15K
9.32 mi12:19:591:17:068:1725:06
8:05
#18840
20K
12.43 mi12:45:211:42:288:1525:22
8:10
#18440
HALF
13.11 mi12:50:501:47:578:155:29
8:03
#18379
25K
15.53 mi13:10:382:07:458:1419:48
8:10
#18086
30K
18.64 mi13:36:382:33:458:1526:00
8:23
#17692
20M
20.00 mi13:47:592:45:068:1611:21
8:22
#17500
21M
21.00 mi13:56:432:53:508:178:44
8:44
#17323
35K
21.75 mi14:02:382:59:458:165:55
7:55
#17177
23M
23.00 mi14:12:343:09:418:159:56
7:57
#16865
24M
24.00 mi14:20:233:17:308:147:49
7:49
#16661
40K
24.85 mi14:27:073:24:148:146:44
7:53
#16455
25.2M
25.20 mi14:30:033:27:108:142:56
8:31
#16365
FINISH
26.22 mi14:37:573:35:048:137:54
7:46
#16245
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi201887734773417567(Top 61%)6234(Top 50%)6234(Top 506%)
10K6.21 mi3.10 mi19432+7567303+4317303+43118678(Top 64%)6836(Top 54%)6836(Top 554%)
15K9.32 mi3.11 mi18840+5926956+3476956+34717567(Top 61%)6234(Top 50%)6234(Top 506%)
20K12.43 mi3.11 mi18440+4006729+2276729+22717268(Top 60%)6085(Top 48%)6085(Top 494%)
HALF13.11 mi0.68 mi18379+616697+326697+3217436(Top 60%)6157(Top 49%)6157(Top 499%)
25K15.53 mi2.42 mi18086+2936543+1546543+15416587(Top 57%)5759(Top 46%)5759(Top 467%)
30K18.64 mi3.11 mi17692+3946356+1876356+18716083(Top 55%)5566(Top 44%)5566(Top 451%)
20M20.00 mi1.36 mi17500+1926260+966260+9615292(Top 53%)5246(Top 42%)5246(Top 425%)
21M21.00 mi1.00 mi17323+1776176+846176+8414618(Top 50%)4922(Top 39%)4922(Top 399%)
35K21.75 mi0.75 mi17177+1466111+656111+6513911(Top 48%)4608(Top 37%)4608(Top 374%)
23M23.00 mi1.25 mi16865+3125965+1465965+14612082(Top 42%)3654(Top 29%)3654(Top 296%)
24M24.00 mi1.00 mi16661+2045862+1035862+10312494(Top 43%)3991(Top 32%)3991(Top 324%)
40K24.85 mi0.85 mi16455+2065778+845778+8411678(Top 40%)3621(Top 29%)3621(Top 294%)
25.2M25.20 mi0.35 mi16365+905736+425736+4211803(Top 41%)3790(Top 30%)3790(Top 307%)
FINISH26.22 mi1.02 mi16245+1205682+545682+5413451(Top 46%)4645(Top 37%)4645(Top 377%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21
+97ft-345ft

Overall

17567

Females

6234

F50-54

6234

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18678

Females

6836

F50-54

6836

10K→15K

6.2 - 9.3 mi

Top 61%
×3
+67ft-78ft

Overall

17567

Females

6234

F50-54

6234

15K→20K

9.3 - 12.4 mi

Top 60%
×5
+106ft-86ft

Overall

17268

Females

6085

F50-54

6085

20K→HALF

12.4 - 13.1 mi

Top 60%
×2
+19ft-37ft

Overall

17436

Females

6157

F50-54

6157

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16587

Females

5759

F50-54

5759

25K→30K

15.5 - 18.6 mi

Top 55%
×9
+181ft-148ft

Overall

16083

Females

5566

F50-54

5566

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15292

Females

5246

F50-54

5246

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14618

Females

4922

F50-54

4922

21M→35K

21.0 - 21.8 mi

Top 48%
×7
+17ft-86ft

Overall

13911

Females

4608

F50-54

4608

35K→23M

21.8 - 23.0 mi

Top 42%
×5
+23ft-63ft

Overall

12082

Females

3654

F50-54

3654

23M→24M

23.0 - 24.0 mi

Top 43%
×6
+12ft-82ft

Overall

12494

Females

3991

F50-54

3991

24M→40K

24.0 - 24.9 mi

Top 40%
×1
+6ft-20ft

Overall

11678

Females

3621

F50-54

3621

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1
+13ft-16ft

Overall

11803

Females

3790

F50-54

3790

25.2M→FINISH

25.2 - 26.2 mi

Top 46%
×2
+22ft-21ft

Overall

13451

Females

4645

F50-54

4645

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4159
Passed By
216
Net Change
+3943
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20188
5K → 10K82064+756#20188#19432
10K → 15K61927+592#19432#18840
15K → 20K41717+400#18840#18440
20K → HALF698+61#18440#18379
HALF → 25K30411+293#18379#18086
25K → 30K42531+394#18086#17692
30K → 20M20210+192#17692#17500
20M → 21M19215+177#17500#17323
21M → 35K1515+146#17323#17177
35K → 23M3164+312#17177#16865
23M → 24M2073+204#16865#16661
24M → 40K2115+206#16661#16455
40K → 25.2M922+90#16455#16365
25.2M → FINISH13414+120#16365#16245
TOTALS4159216+3943
📊

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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing