Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Xiaomei Ding

Bib: 17440FAge: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 38%
Masters (Masters Women)
#0 / 6862
Top 22%
Age Group (F40-44)
#0 / 1737
Top 45%
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
24:09
3.11 mi
Rank: #15198
Start5K
24:09 | 7:47/mi
10K
47:39
6.21 mi
Rank: #14333 (+865)
5K10K
23:30 | 7:34/mi
15K
1:11:01
9.32 mi
Rank: #13844 (+489)
10K15K
23:22 | 7:32/mi
20K
1:34:49
12.43 mi
Rank: #13681 (+163)
15K20K
23:48 | 7:40/mi
HALF
1:40:02
13.11 mi
Rank: #13707 (-26)
20KHALF
5:13 | 7:40/mi
25K
1:59:11
15.53 mi
Rank: #13834 (-127)
HALF25K
19:09 | 7:54/mi
30K
2:24:57
18.64 mi
Rank: #14163 (-329)
25K30K
25:46 | 8:18/mi
20M
2:36:22
20.00 mi
Rank: #14253 (-90)
30K20M
11:25 | 8:25/mi
21M
2:45:32
21.00 mi
Rank: #14395 (-142)
20M21M
9:10 | 9:10/mi
35K
2:51:34
21.75 mi
Rank: #14410 (-15)
21M35K
6:02 | 8:04/mi
23M
3:02:01
23.00 mi
Rank: #14416 (-6)
35K23M
10:27 | 8:22/mi
24M
3:10:12
24.00 mi
Rank: #14462 (-46)
23M24M
8:11 | 8:11/mi
40K
3:17:25
24.85 mi
Rank: #14496 (-34)
24M40K
7:13 | 8:27/mi
25.2M
3:20:42
25.20 mi
Rank: #14563 (-67)
40K25.2M
3:17 | 9:32/mi
FINISH
3:28:59
26.22 mi
Rank: #14622 (-59)
25.2MFINISH
8:17 | 8:08/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:02
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:48:57
Pace8:19 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:3824:097:4724:09
7:47
-
10K
6.21 mi11:50:0847:397:4123:30
7:34
-0:13
15K
9.32 mi12:13:301:11:017:3823:22
7:32
-0:02
20K
12.43 mi12:37:181:34:497:3823:48
7:40
+0:08
HALF
13.11 mi12:42:311:40:027:385:13
7:40
0:00
25K
15.53 mi13:01:401:59:117:4119:09
7:54
+0:14
30K
18.64 mi13:27:262:24:577:4725:46
8:18
+0:24
20M
20.00 mi13:38:512:36:227:5011:25
8:25
+0:07
21M
21.00 mi13:48:012:45:327:539:10
9:10
+0:45
35K
21.75 mi13:54:032:51:347:546:02
8:04
-1:06
23M
23.00 mi14:04:303:02:017:5510:27
8:22
+0:18
24M
24.00 mi14:12:413:10:127:568:11
8:11
-0:11
40K
24.85 mi14:19:543:17:257:577:13
8:27
+0:16
25.2M
25.20 mi14:23:113:20:427:583:17
9:32
+1:05
FINISH
26.22 mi14:31:283:28:597:598:17
8:08
-1:24

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

7:32 /mi

Average Pace

7:59 /mi

Slowest Pace

9:32 /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

1:40:02

48% of race

Time at Steady Pace

1:17:52

37% of race

Time at Slower Pace

31:05

15% of race

Average Pace: 7:58 /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 mi11:26:3824:097:4724:09
7:47
#15198
10K
6.21 mi11:50:0847:397:4123:30
7:34
#14333
15K
9.32 mi12:13:301:11:017:3823:22
7:32
#13844
20K
12.43 mi12:37:181:34:497:3823:48
7:40
#13681
HALF
13.11 mi12:42:311:40:027:385:13
7:40
#13707
25K
15.53 mi13:01:401:59:117:4119:09
7:54
#13834
30K
18.64 mi13:27:262:24:577:4725:46
8:18
#14163
20M
20.00 mi13:38:512:36:227:5011:25
8:25
#14253
21M
21.00 mi13:48:012:45:327:539:10
9:10
#14395
35K
21.75 mi13:54:032:51:347:546:02
8:04
#14410
23M
23.00 mi14:04:303:02:017:5510:27
8:22
#14416
24M
24.00 mi14:12:413:10:127:568:11
8:11
#14462
40K
24.85 mi14:19:543:17:257:577:13
8:27
#14496
25.2M
25.20 mi14:23:113:20:427:583:17
9:32
#14563
FINISH
26.22 mi14:31:283:28:597:598:17
8:08
#14622
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi151984812481213017(Top 45%)3594(Top 29%)3594(Top 207%)
10K6.21 mi3.10 mi14333+8654295+5174295+51713528(Top 47%)3849(Top 31%)3849(Top 222%)
15K9.32 mi3.11 mi13844+4894028+2674028+26713017(Top 45%)3594(Top 29%)3594(Top 207%)
20K12.43 mi3.11 mi13681+1633954+743954+7413384(Top 46%)3878(Top 31%)3878(Top 223%)
HALF13.11 mi0.68 mi13707-263973-193973-1914400(Top 50%)4393(Top 35%)4393(Top 253%)
25K15.53 mi2.42 mi13834-1274068-954068-9514601(Top 50%)4637(Top 37%)4637(Top 267%)
30K18.64 mi3.11 mi14163-3294304-2364304-23615571(Top 54%)5283(Top 42%)5283(Top 304%)
20M20.00 mi1.36 mi14253-904375-714375-7115611(Top 54%)5421(Top 43%)5421(Top 312%)
21M21.00 mi1.00 mi14395-1424472-974472-9717001(Top 59%)6247(Top 50%)6247(Top 360%)
35K21.75 mi0.75 mi14410-154505-334505-3314947(Top 52%)5152(Top 41%)5152(Top 297%)
23M23.00 mi1.25 mi14416-64548-434548-4314804(Top 51%)5168(Top 41%)5168(Top 298%)
24M24.00 mi1.00 mi14462-464605-574605-5715000(Top 52%)5329(Top 42%)5329(Top 307%)
40K24.85 mi0.85 mi14496-344641-364641-3615306(Top 53%)5595(Top 44%)5595(Top 322%)
25.2M25.20 mi0.35 mi14563-674692-514692-5117435(Top 60%)6723(Top 53%)6723(Top 387%)
FINISH26.22 mi1.02 mi14622-594744-524744-5215987(Top 55%)5931(Top 47%)5931(Top 341%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21
+97ft-345ft

Overall

13017

Females

3594

F40-44

3594

5K→10K

3.1 - 6.2 mi

Top 47%
×5
+79ft-138ft

Overall

13528

Females

3849

F40-44

3849

10K→15K

6.2 - 9.3 mi

Top 45%
×3
+67ft-78ft

Overall

13017

Females

3594

F40-44

3594

15K→20K

9.3 - 12.4 mi

Top 46%
×5
+106ft-86ft

Overall

13384

Females

3878

F40-44

3878

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14400

Females

4393

F40-44

4393

HALF→25K

13.1 - 15.5 mi

Top 50%
×4
+66ft-88ft

Overall

14601

Females

4637

F40-44

4637

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15571

Females

5283

F40-44

5283

30K→20M

18.6 - 20.0 mi

Top 54%
×5
+64ft-50ft

Overall

15611

Females

5421

F40-44

5421

20M→21M

20.0 - 21.0 mi

Top 59%
×8
+106ft-24ft

Overall

17001

Females

6247

F40-44

6247

21M→35K

21.0 - 21.8 mi

Top 52%
×7
+17ft-86ft

Overall

14947

Females

5152

F40-44

5152

35K→23M

21.8 - 23.0 mi

Top 51%
×5
+23ft-63ft

Overall

14804

Females

5168

F40-44

5168

23M→24M

23.0 - 24.0 mi

Top 52%
×6
+12ft-82ft

Overall

15000

Females

5329

F40-44

5329

24M→40K

24.0 - 24.9 mi

Top 53%
×1
+6ft-20ft

Overall

15306

Females

5595

F40-44

5595

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1
+13ft-16ft

Overall

17435

Females

6723

F40-44

6723

25.2M→FINISH

25.2 - 26.2 mi

Top 55%
×2
+22ft-21ft

Overall

15987

Females

5931

F40-44

5931

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2370*
Passed By
1542
Net Change
+576
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15198
5K10K927*62+865#15198#14333
10K15K525*36+489#14333#13844
15K20K248*85+163#13844#13681
20KHALF2147-26#13681#13707
HALF25K90200-127#13707#13834
25K30K101200-329#13834#14163
30K20M72162-90#14163#14253
20M21M63200-142#14253#14395
21M35K5368-15#14395#14410
35K23M98104-6#14410#14416
23M24M60106-46#14416#14462
24M40K5791-34#14462#14496
40K25.2M1481-67#14496#14563
25.2MFINISH41100-59#14563#14622
TOTALS2370*1542+576

* 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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Activity Data

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