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BOSTON MARATHON 2025

Lingxiao Xia

Bib: 11177 F CN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 46%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:53/mi
24:28
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:51/mi
48:51
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:02/mi
1:13:47
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:05/mi
1:38:55
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:58/mi
1:44:21
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:57/mi
2:06:04
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:51/mi
2:36:41
↑ 181↓ 1480.2%
138 ft elev
20M
10:03/mi
2:50:20
↑ 64↓ 500.2%
148 ft elev
21M
10:57/mi
3:01:17
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:57/mi
3:08:44
↑ 17↓ 861.7%
156 ft elev
23M
9:49/mi
3:21:02
↑ 23↓ 630.6%
116 ft elev
24M
9:12/mi
3:30:14
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:13/mi
3:38:07
↓ 200.3%
20 ft elev
25.2M
9:49/mi
3:41:30
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:39/mi
3:50:19
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:44:217:58 /mi⚡ faster
2nd Half
2:05:589:37 /mi+20.7%
Positive split — 20.7% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:287:533.11 mi24:28
7:53
-
10K
48:517:523.10 mi24:23
7:51
-0:02
15K
1:13:477:553.11 mi24:56
8:02
+0:11
20K
1:38:557:583.11 mi25:08
8:05
+0:03
Half(13.11 mi)
1:44:217:580.68 mi5:26
7:58
-0:07
25K
2:06:048:072.42 mi21:43
8:57
+0:59
30K
2:36:418:243.11 mi30:37
9:51
+0:54
20M
2:50:208:311.36 mi13:39
10:03
+0:12
21M
3:01:178:381.00 mi10:57
10:57
+0:54
35K
3:08:448:410.75 mi7:27
9:57
-1:00
23M
3:21:028:441.25 mi12:18
9:49
-0:08
24M
3:30:148:461.00 mi9:12
9:12
-0:37
40K
3:38:078:470.85 mi7:53
9:13
+0:01
25.2M
3:41:308:470.35 mi3:23
9:49
+0:36
Finish(26.22 mi)
3:50:198:471.02 mi8:49
8:39
-1:10
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:51 /mi

Average Pace

8:47 /mi

Slowest Pace

10:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:53:10

49% of race

Time at Steady Pace

38:48

17% of race

Time at Slower Pace

1:18:21

34% of race

Average Pace: 8:47 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi15490483148311625652905290
10K3.10 mi15358+1324756+754756+751526547024702
15K3.11 mi15647-2894928-1724928-1721625652905290
20K3.11 mi15636+114953-254953-251559449704970
Half(13.11 mi)0.68 mi15633+34952+14952+11570750275027
25K2.42 mi16421-7885419-4675419-4671971473727372
30K3.11 mi17507-10866124-7056124-7052117183268326
20M1.36 mi17889-3826361-2376361-2372110484108410
21M1.00 mi18211-3226559-1986559-1982126085838583
35K0.75 mi18403-1926680-1216680-1212178889228922
23M1.25 mi18523-1206778-986778-981988179857985
24M1.00 mi18527-46812-346812-341837072357235
40K0.85 mi18459+686800+126800+121747168476847
25.2M0.35 mi18425+346791+96791+91622562106210
Finish(26.22 mi)1.02 mi18390+356797-66797-61720666686668

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16256

Females

5290

F40-44

5290

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15265

Females

4702

F40-44

4702

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16256

Females

5290

F40-44

5290

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

15594

Females

4970

F40-44

4970

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15707

Females

5027

F40-44

5027

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19714

Females

7372

F40-44

7372

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21171

Females

8326

F40-44

8326

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21104

Females

8410

F40-44

8410

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

21260

Females

8583

F40-44

8583

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

21788

Females

8922

F40-44

8922

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19881

Females

7985

F40-44

7985

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18370

Females

7235

F40-44

7235

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17471

Females

6847

F40-44

6847

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16225

Females

6210

F40-44

6210

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17206

Females

6668

F40-44

6668

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#15490
5K → 10K
247379+132
#15490 → #15358
10K → 15K
410121-289
#15358 → #15647
15K → 20K
207218+11
#15647 → #15636
20K → Half
2528+3
#15636 → #15633
Half → 25K
81931-788
#15633 → #16421
25K → 30K
113246-1086
#16421 → #17507
30K → 20M
43250-382
#17507 → #17889
20M → 21M
35230-322
#17889 → #18211
21M → 35K
21422-192
#18211 → #18403
35K → 23M
19676-120
#18403 → #18523
23M → 24M
7874-4
#18523 → #18527
24M → 40K
35103+68
#18527 → #18459
40K → 25.2M
1246+34
#18459 → #18425
25.2M → Finish
4176+35
#18425 → #18390
TOTALS
42001300-2900
#15490 → #18390

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing