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BOSTON MARATHON 2025

Szuyao Liao

Bib: 20112 F TW

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 25%
Masters (Masters Women)
#0 / 6759
Top 11%
Division (F40-44)
#0 / 1718
Top 24%
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
7:49/mi
24:16
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:42/mi
48:11
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:49/mi
1:12:27
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:53/mi
1:36:56
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:42/mi
1:42:11
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:49/mi
2:01:07
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:51/mi
2:25:29
↑ 181↓ 1480.2%
138 ft elev
20M
7:58/mi
2:36:19
↑ 64↓ 500.2%
148 ft elev
21M
8:10/mi
2:44:29
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:44/mi
2:50:16
↑ 17↓ 861.7%
156 ft elev
23M
8:01/mi
3:00:18
↑ 23↓ 630.6%
116 ft elev
24M
7:40/mi
3:07:58
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:45/mi
3:14:36
↓ 200.3%
20 ft elev
25.2M
8:13/mi
3:17:26
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:26/mi
3:25:00
↑ 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
1:42:117:48 /mi⚖️ balanced
2nd Half
1:42:497:51 /mi⚖️ balanced
Even split — consistent pacing between halves
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1624:167:4924:16
7:49
-
10K
6.21 mi11:40:1148:117:4523:55
7:42
-0:07
15K
9.32 mi12:04:271:12:277:4624:16
7:49
+0:07
20K
12.43 mi12:28:561:36:567:4824:29
7:53
+0:04
Half
13.11 mi12:34:111:42:117:485:15
7:42
-0:11
25K
15.53 mi12:53:072:01:077:4818:56
7:49
+0:07
30K
18.64 mi13:17:292:25:297:4824:22
7:51
+0:02
20M
20.00 mi13:28:192:36:197:4910:50
7:58
+0:07
21M
21.00 mi13:36:292:44:297:508:10
8:10
+0:12
35K
21.75 mi13:42:162:50:167:505:47
7:44
-0:26
23M
23.00 mi13:52:183:00:187:5010:02
8:01
+0:17
24M
24.00 mi13:59:583:07:587:507:40
7:40
-0:21
40K
24.85 mi14:06:363:14:367:506:38
7:45
+0:05
25.2M
25.20 mi14:09:263:17:267:502:50
8:13
+0:28
Finish
26.22 mi14:17:003:25:007:497:34
7:26
-0:47

Checkpoints & Pacing

📈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

7:26 /mi

Average Pace

7:49 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:10

99% of race

Time at Steady Pace

2:50

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:16:1624:167:4924:16
7:49
#14901
10K
6.21 mi11:40:1148:117:4523:55
7:42
#14370
15K
9.32 mi12:04:271:12:277:4624:16
7:49
#14399
20K
12.43 mi12:28:561:36:567:4824:29
7:53
#14248
Half
13.11 mi12:34:111:42:117:485:15
7:42
#14208
25K
15.53 mi12:53:072:01:077:4818:56
7:49
#13863
30K
18.64 mi13:17:292:25:297:4824:22
7:51
#13126
20M
20.00 mi13:28:192:36:197:4910:50
7:58
#12866
21M
21.00 mi13:36:292:44:297:508:10
8:10
#12559
35K
21.75 mi13:42:162:50:167:505:47
7:44
#12449
23M
23.00 mi13:52:183:00:187:5010:02
8:01
#12277
24M
24.00 mi13:59:583:07:587:507:40
7:40
#12099
40K
24.85 mi14:06:363:14:367:506:38
7:45
#11938
25.2M
25.20 mi14:09:263:17:267:502:50
8:13
#11844
Finish
26.22 mi14:17:003:25:007:497:34
7:26
#11683
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi14901446044601446342834283
10K6.21 mi3.10 mi14370+5314157+3034157+3031388738883888
15K9.32 mi3.11 mi14399-294199-424199-421446342834283
20K12.43 mi3.11 mi14248+1514147+524147+521393140514051
Half13.11 mi0.68 mi14208+404128+194128+191337836893689
25K15.53 mi2.42 mi13863+3453966+1623966+1621244333593359
30K18.64 mi3.11 mi13126+7373626+3403626+3401025824172417
20M20.00 mi1.36 mi12866+2603509+1173509+1171029225932593
21M21.00 mi1.00 mi12559+3073369+1403369+140841719131913
35K21.75 mi0.75 mi12449+1103335+343335+341035827832783
23M23.00 mi1.25 mi12277+1723284+513284+511015828252825
24M24.00 mi1.00 mi12099+1783221+633221+63894723102310
40K24.85 mi0.85 mi11938+1613182+393182+39853822532253
25.2M25.20 mi0.35 mi11844+943143+393143+39727617921792
Finish26.22 mi1.02 mi11683+1613098+453098+45870823992399

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14463

Females

4283

F40-44

4283

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13887

Females

3888

F40-44

3888

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14463

Females

4283

F40-44

4283

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13931

Females

4051

F40-44

4051

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13378

Females

3689

F40-44

3689

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12443

Females

3359

F40-44

3359

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10258

Females

2417

F40-44

2417

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10292

Females

2593

F40-44

2593

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8417

Females

1913

F40-44

1913

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10358

Females

2783

F40-44

2783

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10158

Females

2825

F40-44

2825

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8947

Females

2310

F40-44

2310

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8538

Females

2253

F40-44

2253

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7276

Females

1792

F40-44

1792

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8708

Females

2399

F40-44

2399

Passing Analysis

Category:
Athletes Passed
3810
Passed By
592
Net Change
+3218
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14901
5K → 10K635104+531#14901#14370
10K → 15K192221-29#14370#14399
15K → 20K277126+151#14399#14248
20K → Half5515+40#14248#14208
Half → 25K36924+345#14208#13863
25K → 30K7458+737#13863#13126
30K → 20M27212+260#13126#12866
20M → 21M3103+307#12866#12559
21M → 35K12717+110#12559#12449
35K → 23M19422+172#12449#12277
23M → 24M1868+178#12277#12099
24M → 40K17413+161#12099#11938
40K → 25.2M984+94#11938#11844
25.2M → Finish17615+161#11844#11683
TOTALS3810592+3218

Passing Charts

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