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BOSTON MARATHON 2025

Qing Li

Bib: 12934•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
Masters (Masters Women)
#0 / 6759
Top 31%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:26
Rank: #15386
Start → 5K
24:26 | 7:52/mi
10K· 6.21 mi
49:05
Rank: #15671 (-285)
5K → 10K
24:39 | 7:56/mi
15K· 9.32 mi
1:13:44
Rank: #15595 (+76)
10K → 15K
24:39 | 7:56/mi
20K· 12.43 mi
1:40:32
Rank: #16609 (-1014)
15K → 20K
26:48 | 8:38/mi
Half· 13.11 mi
1:46:15
Rank: #16705 (-96)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:06:08
Rank: #16453 (+252)
Half → 25K
19:53 | 8:12/mi
30K· 18.64 mi
2:32:50
Rank: #16203 (+250)
25K → 30K
26:42 | 8:36/mi
20M
2:44:47
Rank: #16137 (+66)
30K → 20M
11:57 | 8:48/mi
21M
2:54:23
Rank: #16109 (+28)
20M → 21M
9:36 | 9:36/mi
35K· 21.75 mi
3:01:02
Rank: #16136 (-27)
21M → 35K
6:39 | 8:53/mi
23M
3:12:12
Rank: #16055 (+81)
35K → 23M
11:10 | 8:55/mi
24M
3:20:45
Rank: #15997 (+58)
23M → 24M
8:33 | 8:33/mi
40K· 24.85 mi
3:28:16
Rank: #15942 (+55)
24M → 40K
7:31 | 8:47/mi
25.2M
3:31:34
Rank: #15919 (+23)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:40:21
Rank: #15958 (-39)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:15
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:54:06
Pace8:42 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5824:267:5224:26
7:52
-
10K
6.21 mi11:19:3749:057:5424:39
7:56
+0:04
15K
9.32 mi11:44:161:13:447:5524:39
7:56
0:00
20K
12.43 mi12:11:041:40:328:0526:48
8:38
+0:42
Half
13.11 mi12:16:471:46:158:065:43
8:23
-0:15
25K
15.53 mi12:36:402:06:088:0719:53
8:12
-0:11
30K
18.64 mi13:03:222:32:508:1226:42
8:36
+0:24
20M
20.00 mi13:15:192:44:478:1411:57
8:48
+0:12
21M
21.00 mi13:24:552:54:238:189:36
9:36
+0:48
35K
21.75 mi13:31:343:01:028:196:39
8:53
-0:43
23M
23.00 mi13:42:443:12:128:2111:10
8:55
+0:02
24M
24.00 mi13:51:173:20:458:228:33
8:33
-0:22
40K
24.85 mi13:58:483:28:168:237:31
8:47
+0:14
25.2M
25.20 mi14:02:063:31:348:243:18
9:34
+0:47
Finish
26.22 mi14:10:533:40:218:258:47
8:37
-0:57

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

7:52 /mi

Average Pace

8:25 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:37

42% of race

Time at Steady Pace

1:36:01

44% of race

Time at Slower Pace

30:43

14% of race

Average Pace: 8:24 /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 mi10:54:5824:267:5224:26
7:52
#15386
10K
6.21 mi11:19:3749:057:5424:39
7:56
#15671
15K
9.32 mi11:44:161:13:447:5524:39
7:56
#15595
20K
12.43 mi12:11:041:40:328:0526:48
8:38
#16609
Half
13.11 mi12:16:471:46:158:065:43
8:23
#16705
25K
15.53 mi12:36:402:06:088:0719:53
8:12
#16453
30K
18.64 mi13:03:222:32:508:1226:42
8:36
#16203
20M
20.00 mi13:15:192:44:478:1411:57
8:48
#16137
21M
21.00 mi13:24:552:54:238:189:36
9:36
#16109
35K
21.75 mi13:31:343:01:028:196:39
8:53
#16136
23M
23.00 mi13:42:443:12:128:2111:10
8:55
#16055
24M
24.00 mi13:51:173:20:458:228:33
8:33
#15997
40K
24.85 mi13:58:483:28:168:237:31
8:47
#15942
25.2M
25.20 mi14:02:063:31:348:243:18
9:34
#15919
Finish
26.22 mi14:10:533:40:218:258:47
8:37
#15958
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi153864771477115535(Top 55%)4880(Top 40%)4880(Top 284%)
10K6.21 mi3.10 mi15671-2854938-1674938-16715959(Top 56%)5101(Top 42%)5101(Top 297%)
15K9.32 mi3.11 mi15595+764897+414897+4115535(Top 55%)4880(Top 40%)4880(Top 284%)
20K12.43 mi3.11 mi16609-10145505-6085505-60818987(Top 67%)6907(Top 56%)6907(Top 402%)
Half13.11 mi0.68 mi16705-965563-585563-5818477(Top 65%)6591(Top 54%)6591(Top 384%)
25K15.53 mi2.42 mi16453+2525435+1285435+12815340(Top 54%)4925(Top 40%)4925(Top 287%)
30K18.64 mi3.11 mi16203+2505341+945341+9415363(Top 54%)5109(Top 42%)5109(Top 297%)
20M20.00 mi1.36 mi16137+665347-65347-615643(Top 55%)5387(Top 44%)5387(Top 314%)
21M21.00 mi1.00 mi16109+285363-165363-1616563(Top 58%)6009(Top 49%)6009(Top 350%)
35K21.75 mi0.75 mi16136-275405-425405-4217712(Top 62%)6736(Top 55%)6736(Top 392%)
23M23.00 mi1.25 mi16055+815386+195386+1915800(Top 56%)5771(Top 47%)5771(Top 336%)
24M24.00 mi1.00 mi15997+585384+25384+214845(Top 52%)5300(Top 43%)5300(Top 308%)
40K24.85 mi0.85 mi15942+555369+155369+1515167(Top 53%)5611(Top 46%)5611(Top 327%)
25.2M25.20 mi0.35 mi15919+235374-55374-515000(Top 53%)5547(Top 45%)5547(Top 323%)
Finish26.22 mi1.02 mi15958-395408-345408-3416973(Top 60%)6541(Top 53%)6541(Top 381%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15535

Females

4880

F40-44

4880

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15959

Females

5101

F40-44

5101

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15535

Females

4880

F40-44

4880

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

18987

Females

6907

F40-44

6907

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18477

Females

6591

F40-44

6591

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

15340

Females

4925

F40-44

4925

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

15363

Females

5109

F40-44

5109

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

15643

Females

5387

F40-44

5387

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16563

Females

6009

F40-44

6009

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

17712

Females

6736

F40-44

6736

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15800

Females

5771

F40-44

5771

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14845

Females

5300

F40-44

5300

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15167

Females

5611

F40-44

5611

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15000

Females

5547

F40-44

5547

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16973

Females

6541

F40-44

6541

Passing Analysis

Category:
Athletes Passed
1898
Passed By
2470
Net Change
-572
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15386
5K → 10K207492-285#15386#15671
10K → 15K243167+76#15671#15595
15K → 20K431057-1014#15595#16609
20K → Half14110-96#16609#16705
Half → 25K28331+252#16705#16453
25K → 30K357107+250#16453#16203
30K → 20M14680+66#16203#16137
20M → 21M11284+28#16137#16109
21M → 35K6188-27#16109#16136
35K → 23M14665+81#16136#16055
23M → 24M9335+58#16055#15997
24M → 40K9439+55#15997#15942
40K → 25.2M4926+23#15942#15919
25.2M → Finish5089-39#15919#15958
TOTALS18982470-572
📊

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