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BOSTON MARATHON 2025

Xuanyun Liu

Bib: 29828•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:32
Rank: #24262
Start → 5K
9:30/mi
29:32 split
10K· 6.21 mi
58:38
Rank: #23996 (+266)
5K → 10K
9:22/mi
29:06 split
15K· 9.32 mi
1:28:03
Rank: #23893 (+103)
10K → 15K
9:28/mi
29:25 split
20K· 12.43 mi
1:59:58
Rank: #24172 (-279)
15K → 20K
10:16/mi
31:55 split
Half· 13.11 mi
2:06:42
Rank: #24205 (-33)
20K → Half
9:52/mi
6:44 split
25K· 15.53 mi
2:32:56
Rank: #24362 (-157)
Half → 25K
10:49/mi
26:14 split
30K· 18.64 mi
3:08:20
Rank: #24456 (-94)
25K → 30K
11:24/mi
35:24 split
20M
3:24:37
Rank: #24553 (-97)
30K → 20M
11:59/mi
16:17 split
21M
3:37:14
Rank: #24558 (-5)
20M → 21M
12:37/mi
12:37 split
35K· 21.75 mi
3:45:02
Rank: #24512 (+46)
21M → 35K
10:26/mi
7:48 split
23M
3:58:31
Rank: #24422 (+90)
35K → 23M
10:46/mi
13:29 split
24M
4:08:58
Rank: #24343 (+79)
23M → 24M
10:27/mi
10:27 split
40K· 24.85 mi
4:18:16
Rank: #24297 (+46)
24M → 40K
10:53/mi
9:18 split
25.2M
4:22:26
Rank: #24279 (+18)
40K → 25.2M
12:05/mi
4:10 split
Finish· 26.22 mi
4:33:34
Rank: #24332 (-53)
25.2M → Finish
10:56/mi
11:08 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:42
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:26:52
Pace11:12 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:0929:329:3029:32
9:30
-
10K
6.21 mi12:24:1558:389:2629:06
9:22
-0:08
15K
9.32 mi12:53:401:28:039:2729:25
9:28
+0:06
20K
12.43 mi13:25:351:59:589:3931:55
10:16
+0:48
Half
13.11 mi13:32:192:06:429:406:44
9:52
-0:24
25K
15.53 mi13:58:332:32:569:5126:14
10:49
+0:57
30K
18.64 mi14:33:573:08:2010:0635:24
11:24
+0:35
20M
20.00 mi14:50:143:24:3710:1416:17
11:59
+0:35
21M
21.00 mi15:02:513:37:1410:2112:37
12:37
+0:38
35K
21.75 mi15:10:393:45:0210:217:48
10:26
-2:11
23M
23.00 mi15:24:083:58:3110:2213:29
10:46
+0:20
24M
24.00 mi15:34:354:08:5810:2210:27
10:27
-0:19
40K
24.85 mi15:43:534:18:1610:239:18
10:53
+0:26
25.2M
25.20 mi15:48:034:22:2610:254:10
12:05
+1:12
Finish
26.22 mi15:59:114:33:3410:2611:08
10:56
-1:09

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

9:22 /mi

Average Pace

10:26 /mi

Slowest Pace

12:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:42

46% of race

Time at Steady Pace

1:18:24

29% of race

Time at Slower Pace

1:08:28

25% of race

Average Pace: 10:26 /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 mi11:55:0929:329:3029:32
9:30
#24262
10K
6.21 mi12:24:1558:389:2629:06
9:22
#23996
15K
9.32 mi12:53:401:28:039:2729:25
9:28
#23893
20K
12.43 mi13:25:351:59:589:3931:55
10:16
#24172
Half
13.11 mi13:32:192:06:429:406:44
9:52
#24205
25K
15.53 mi13:58:332:32:569:5126:14
10:49
#24362
30K
18.64 mi14:33:573:08:2010:0635:24
11:24
#24456
20M
20.00 mi14:50:143:24:3710:1416:17
11:59
#24553
21M
21.00 mi15:02:513:37:1410:2112:37
12:37
#24558
35K
21.75 mi15:10:393:45:0210:217:48
10:26
#24512
23M
23.00 mi15:24:083:58:3110:2213:29
10:46
#24422
24M
24.00 mi15:34:354:08:5810:2210:27
10:27
#24343
40K
24.85 mi15:43:534:18:1610:239:18
10:53
#24297
25.2M
25.20 mi15:48:034:22:2610:254:10
12:05
#24279
Finish
26.22 mi15:59:114:33:3410:2611:08
10:56
#24332
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi24262143681436823645(Top 83%)14121(Top 88%)14121(Top 857%)
10K6.21 mi3.10 mi23996+26614251+11714251+11723739(Top 84%)14141(Top 88%)14141(Top 858%)
15K9.32 mi3.11 mi23893+10314214+3714214+3723645(Top 83%)14121(Top 88%)14121(Top 857%)
20K12.43 mi3.11 mi24172-27914321-10714321-10724781(Top 87%)14574(Top 90%)14574(Top 884%)
Half13.11 mi0.68 mi24205-3314328-714328-724534(Top 86%)14452(Top 90%)14452(Top 877%)
25K15.53 mi2.42 mi24362-15714386-5814386-5824944(Top 88%)14622(Top 91%)14622(Top 887%)
30K18.64 mi3.11 mi24456-9414416-3014416-3024688(Top 87%)14394(Top 89%)14394(Top 873%)
20M20.00 mi1.36 mi24553-9714448-3214448-3225236(Top 89%)14568(Top 90%)14568(Top 884%)
21M21.00 mi1.00 mi24558-514429+1914429+1924546(Top 86%)14166(Top 88%)14166(Top 860%)
35K21.75 mi0.75 mi24512+4614399+3014399+3023009(Top 81%)13392(Top 83%)13392(Top 813%)
23M23.00 mi1.25 mi24422+9014342+5714342+5722680(Top 80%)13194(Top 82%)13194(Top 801%)
24M24.00 mi1.00 mi24343+7914296+4614296+4622682(Top 80%)13152(Top 82%)13152(Top 798%)
40K24.85 mi0.85 mi24297+4614266+3014266+3022854(Top 80%)13175(Top 82%)13175(Top 799%)
25.2M25.20 mi0.35 mi24279+1814251+1514251+1523400(Top 82%)13480(Top 84%)13480(Top 818%)
Finish26.22 mi1.02 mi24332-5314261-1014261-1025216(Top 89%)14395(Top 89%)14395(Top 873%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

23645

Males

14121

M55-59

14121

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23739

Males

14141

M55-59

14141

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

23645

Males

14121

M55-59

14121

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24781

Males

14574

M55-59

14574

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24534

Males

14452

M55-59

14452

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

24944

Males

14622

M55-59

14622

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24688

Males

14394

M55-59

14394

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

25236

Males

14568

M55-59

14568

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24546

Males

14166

M55-59

14166

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23009

Males

13392

M55-59

13392

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22680

Males

13194

M55-59

13194

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22682

Males

13152

M55-59

13152

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22854

Males

13175

M55-59

13175

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23400

Males

13480

M55-59

13480

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25216

Males

14395

M55-59

14395

Passing Analysis

Category:
Athletes Passed
1295
Passed By
1365
Net Change
-70
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24262
5K → 10K384118+266#24262#23996
10K → 15K210107+103#23996#23893
15K → 20K61340-279#23893#24172
20K → Half1447-33#24172#24205
Half → 25K70227-157#24205#24362
25K → 30K102196-94#24362#24456
30K → 20M32129-97#24456#24553
20M → 21M5762-5#24553#24558
21M → 35K5812+46#24558#24512
35K → 23M10919+90#24512#24422
23M → 24M9112+79#24422#24343
24M → 40K6216+46#24343#24297
40K → 25.2M257+18#24297#24279
25.2M → Finish2073-53#24279#24332
TOTALS12951365-70
📊

Passing Visuals

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