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BOSTON MARATHON 2025

Qing Liu

Bib: 11399•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 27%
Gender (Male)
#0 / 16105
Top 40%
Masters (Masters Men)
#0 / 10463
Top 27%
Division (M45-49)
#0 / 2386
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:15
Rank: #12071
Start → 5K
23:15 | 7:29/mi
10K· 6.21 mi
46:07
Rank: #11422 (+649)
5K → 10K
22:52 | 7:22/mi
15K· 9.32 mi
1:08:50
Rank: #10918 (+504)
10K → 15K
22:43 | 7:19/mi
20K· 12.43 mi
1:31:25
Rank: #10360 (+558)
15K → 20K
22:35 | 7:16/mi
Half· 13.11 mi
1:36:15
Rank: #10226 (+134)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:54:09
Rank: #9980 (+246)
Half → 25K
17:54 | 7:23/mi
30K· 18.64 mi
2:16:49
Rank: #9194 (+786)
25K → 30K
22:40 | 7:18/mi
20M
2:26:21
Rank: #8674 (+520)
30K → 20M
9:32 | 7:01/mi
21M
2:33:59
Rank: #8395 (+279)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:39:13
Rank: #8235 (+160)
21M → 35K
5:14 | 7:00/mi
23M
2:48:15
Rank: #7920 (+315)
35K → 23M
9:02 | 7:13/mi
24M
2:55:43
Rank: #7889 (+31)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
3:01:58
Rank: #7750 (+139)
24M → 40K
6:15 | 7:19/mi
25.2M
3:04:57
Rank: #7753 (-3)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:12:03
Rank: #7623 (+130)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:36:15
Pace7:21 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:35:48
Pace7:18 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2223:157:2923:15
7:29
-
10K
6.21 mi11:13:1446:077:2522:52
7:22
-0:07
15K
9.32 mi11:35:571:08:507:2322:43
7:19
-0:03
20K
12.43 mi11:58:321:31:257:2122:35
7:16
-0:03
Half
13.11 mi12:03:221:36:157:214:50
7:05
-0:11
25K
15.53 mi12:21:161:54:097:2117:54
7:23
+0:18
30K
18.64 mi12:43:562:16:497:2022:40
7:18
-0:05
20M
20.00 mi12:53:282:26:217:199:32
7:01
-0:17
21M
21.00 mi13:01:062:33:597:207:38
7:38
+0:37
35K
21.75 mi13:06:202:39:137:195:14
7:00
-0:38
23M
23.00 mi13:15:222:48:157:199:02
7:13
+0:13
24M
24.00 mi13:22:502:55:437:197:28
7:28
+0:15
40K
24.85 mi13:29:053:01:587:196:15
7:19
-0:09
25.2M
25.20 mi13:32:043:04:577:202:59
8:39
+1:20
Finish
26.22 mi13:39:103:12:037:207:06
6:58
-1:41

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

6:58 /mi

Average Pace

7:20 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:42

14% of race

Time at Steady Pace

2:34:44

81% of race

Time at Slower Pace

10:37

6% of race

Average Pace: 7:19 /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 mi10:50:2223:157:2923:15
7:29
#12071
10K
6.21 mi11:13:1446:077:2522:52
7:22
#11422
15K
9.32 mi11:35:571:08:507:2322:43
7:19
#10918
20K
12.43 mi11:58:321:31:257:2122:35
7:16
#10360
Half
13.11 mi12:03:221:36:157:214:50
7:05
#10226
25K
15.53 mi12:21:161:54:097:2117:54
7:23
#9980
30K
18.64 mi12:43:562:16:497:2022:40
7:18
#9194
20M
20.00 mi12:53:282:26:217:199:32
7:01
#8674
21M
21.00 mi13:01:062:33:597:207:38
7:38
#8395
35K
21.75 mi13:06:202:39:137:195:14
7:00
#8235
23M
23.00 mi13:15:222:48:157:199:02
7:13
#7920
24M
24.00 mi13:22:502:55:437:197:28
7:28
#7889
40K
24.85 mi13:29:053:01:587:196:15
7:19
#7750
25.2M
25.20 mi13:32:043:04:577:202:59
8:39
#7753
Finish
26.22 mi13:39:103:12:037:207:06
6:58
#7623
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi120719200920010067(Top 35%)8116(Top 50%)8116(Top 340%)
10K6.21 mi3.10 mi11422+6498878+3228878+32210805(Top 38%)8562(Top 53%)8562(Top 359%)
15K9.32 mi3.11 mi10918+5048608+2708608+27010067(Top 35%)8116(Top 50%)8116(Top 340%)
20K12.43 mi3.11 mi10360+5588296+3128296+3128756(Top 31%)7304(Top 45%)7304(Top 306%)
Half13.11 mi0.68 mi10226+1348217+798217+798121(Top 29%)6960(Top 43%)6960(Top 292%)
25K15.53 mi2.42 mi9980+2468058+1598058+1598991(Top 32%)7327(Top 45%)7327(Top 307%)
30K18.64 mi3.11 mi9194+7867574+4847574+4846422(Top 23%)5601(Top 35%)5601(Top 235%)
20M20.00 mi1.36 mi8674+5207242+3327242+3324191(Top 15%)3830(Top 24%)3830(Top 161%)
21M21.00 mi1.00 mi8395+2797046+1967046+1965287(Top 19%)4586(Top 28%)4586(Top 192%)
35K21.75 mi0.75 mi8235+1606933+1136933+1135312(Top 19%)4594(Top 29%)4594(Top 193%)
23M23.00 mi1.25 mi7920+3156686+2476686+2474961(Top 17%)4287(Top 27%)4287(Top 180%)
24M24.00 mi1.00 mi7889+316630+566630+567429(Top 26%)5776(Top 36%)5776(Top 242%)
40K24.85 mi0.85 mi7750+1396513+1176513+1175688(Top 20%)4662(Top 29%)4662(Top 195%)
25.2M25.20 mi0.35 mi7753-36499+146499+149621(Top 34%)6740(Top 42%)6740(Top 282%)
Finish26.22 mi1.02 mi7623+1306387+1126387+1125493(Top 19%)4417(Top 27%)4417(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

10067

Males

8116

M45-49

8116

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10805

Males

8562

M45-49

8562

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

10067

Males

8116

M45-49

8116

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8756

Males

7304

M45-49

7304

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8121

Males

6960

M45-49

6960

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8991

Males

7327

M45-49

7327

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6422

Males

5601

M45-49

5601

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4191

Males

3830

M45-49

3830

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5287

Males

4586

M45-49

4586

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5312

Males

4594

M45-49

4594

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4961

Males

4287

M45-49

4287

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7429

Males

5776

M45-49

5776

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5688

Males

4662

M45-49

4662

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9621

Males

6740

M45-49

6740

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5493

Males

4417

M45-49

4417

Passing Analysis

Category:
Athletes Passed
4711*
Passed By
263
Net Change
+4448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12071
5K → 10K71263+649#12071#11422
10K → 15K53531+504#11422#10918
15K → 20K5668+558#10918#10360
20K → Half1351+134#10360#10226
Half → 25K285*39+246#10226#9980
25K → 30K7860+786#9980#9194
30K → 20M5200+520#9194#8674
20M → 21M2845+279#8674#8395
21M → 35K1622+160#8395#8235
35K → 23M3205+315#8235#7920
23M → 24M8453+31#7920#7889
24M → 40K1489+139#7889#7750
40K → 25.2M3134-3#7750#7753
25.2M → Finish14313+130#7753#7623
TOTALS4711*263+4448

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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