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BOSTON MARATHON 2025

Junhui Fang

Bib: 20065•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
Masters (Masters Women)
#0 / 6759
Top 26%
Division (F45-49)
#0 / 1813
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:53/mi
24:29
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:12:40
↑ 67↓ 78
20K· 12.43 mi
8:14/mi
1:38:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:43:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:21/mi
2:03:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:30:44
↑ 181↓ 1480.2%
20M
8:44/mi
2:42:36
↑ 64↓ 500.2%
21M
9:36/mi
2:52:12
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:58:17
↑ 17↓ 861.7%
23M
8:33/mi
3:08:59
↑ 23↓ 630.6%
24M
8:25/mi
3:17:24
↓ 821.3%
40K· 24.85 mi
8:33/mi
3:24:43
↓ 200.3%
25.2M
9:46/mi
3:28:05
↑ 13↓ 160.2%
Finish· 26.22 mi
8:21/mi
3:36:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:39
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:52:57
Pace8:37 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2924:297:5324:29
7:53
-
10K
6.21 mi11:42:2648:267:4823:57
7:43
-0:10
15K
9.32 mi12:06:401:12:407:4824:14
7:48
+0:05
20K
12.43 mi12:32:141:38:147:5425:34
8:14
+0:26
Half
13.11 mi12:37:391:43:397:545:25
7:56
-0:18
25K
15.53 mi12:57:532:03:537:5820:14
8:21
+0:25
30K
18.64 mi13:24:442:30:448:0526:51
8:39
+0:18
20M
20.00 mi13:36:362:42:368:0811:52
8:44
+0:05
21M
21.00 mi13:46:122:52:128:129:36
9:36
+0:52
35K
21.75 mi13:52:172:58:178:126:05
8:08
-1:28
23M
23.00 mi14:02:593:08:598:1310:42
8:33
+0:25
24M
24.00 mi14:11:243:17:248:148:25
8:25
-0:08
40K
24.85 mi14:18:433:24:438:147:19
8:33
+0:08
25.2M
25.20 mi14:22:053:28:058:153:22
9:46
+1:13
Finish
26.22 mi14:30:363:36:368:168:31
8:21
-1:25

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

7:43 /mi

Average Pace

8:16 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:05

36% of race

Time at Steady Pace

1:26:50

40% of race

Time at Slower Pace

51:41

24% of race

Average Pace: 8:16 /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 mi11:18:2924:297:5324:29
7:53
#15522
10K
6.21 mi11:42:2648:267:4823:57
7:43
#14752
15K
9.32 mi12:06:401:12:407:4824:14
7:48
#14602
20K
12.43 mi12:32:141:38:147:5425:34
8:14
#15143
Half
13.11 mi12:37:391:43:397:545:25
7:56
#15154
25K
15.53 mi12:57:532:03:537:5820:14
8:21
#15365
30K
18.64 mi13:24:442:30:448:0526:51
8:39
#15406
20M
20.00 mi13:36:362:42:368:0811:52
8:44
#15359
21M
21.00 mi13:46:122:52:128:129:36
9:36
#15391
35K
21.75 mi13:52:172:58:178:126:05
8:08
#15284
23M
23.00 mi14:02:593:08:598:1310:42
8:33
#15149
24M
24.00 mi14:11:243:17:248:148:25
8:25
#15061
40K
24.85 mi14:18:433:24:438:147:19
8:33
#15013
25.2M
25.20 mi14:22:053:28:058:153:22
9:46
#15009
Finish
26.22 mi14:30:363:36:368:168:31
8:21
#14998
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi155224844484414388(Top 51%)4253(Top 35%)4253(Top 235%)
10K6.21 mi3.10 mi14752+7704403+4414403+44113987(Top 49%)3956(Top 32%)3956(Top 218%)
15K9.32 mi3.11 mi14602+1504316+874316+8714388(Top 51%)4253(Top 35%)4253(Top 235%)
20K12.43 mi3.11 mi15143-5414661-3454661-34516494(Top 58%)5483(Top 45%)5483(Top 302%)
Half13.11 mi0.68 mi15154-114671-104671-1015481(Top 55%)4881(Top 40%)4881(Top 269%)
25K15.53 mi2.42 mi15365-2114812-1414812-14116213(Top 57%)5428(Top 44%)5428(Top 299%)
30K18.64 mi3.11 mi15406-414895-834895-8315650(Top 55%)5253(Top 43%)5253(Top 290%)
20M20.00 mi1.36 mi15359+474900-54900-515272(Top 54%)5187(Top 42%)5187(Top 286%)
21M21.00 mi1.00 mi15391-324947-474947-4716557(Top 58%)6003(Top 49%)6003(Top 331%)
35K21.75 mi0.75 mi15284+1074900+474900+4713196(Top 46%)4280(Top 35%)4280(Top 236%)
23M23.00 mi1.25 mi15149+1354856+444856+4413617(Top 48%)4601(Top 38%)4601(Top 254%)
24M24.00 mi1.00 mi15061+884839+174839+1714016(Top 49%)4835(Top 40%)4835(Top 267%)
40K24.85 mi0.85 mi15013+484842-34842-313816(Top 49%)4864(Top 40%)4864(Top 268%)
25.2M25.20 mi0.35 mi15009+44856-144856-1415945(Top 56%)6050(Top 49%)6050(Top 334%)
Finish26.22 mi1.02 mi14998+114873-174873-1715313(Top 54%)5646(Top 46%)5646(Top 311%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14388

Females

4253

F45-49

4253

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13987

Females

3956

F45-49

3956

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14388

Females

4253

F45-49

4253

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16494

Females

5483

F45-49

5483

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15481

Females

4881

F45-49

4881

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

16213

Females

5428

F45-49

5428

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15650

Females

5253

F45-49

5253

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

15272

Females

5187

F45-49

5187

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16557

Females

6003

F45-49

6003

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13196

Females

4280

F45-49

4280

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13617

Females

4601

F45-49

4601

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

14016

Females

4835

F45-49

4835

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13816

Females

4864

F45-49

4864

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15945

Females

6050

F45-49

6050

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15313

Females

5646

F45-49

5646

Passing Analysis

Category:
Athletes Passed
2452
Passed By
1928
Net Change
+524
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15522
5K → 10K84070+770#15522#14752
10K → 15K274124+150#14752#14602
15K → 20K99640-541#14602#15143
20K → Half3647-11#15143#15154
Half → 25K107318-211#15154#15365
25K → 30K229270-41#15365#15406
30K → 20M13891+47#15406#15359
20M → 21M99131-32#15359#15391
21M → 35K12316+107#15391#15284
35K → 23M17540+135#15284#15149
23M → 24M12739+88#15149#15061
24M → 40K8941+48#15061#15013
40K → 25.2M4137+4#15013#15009
25.2M → Finish7564+11#15009#14998
TOTALS24521928+524
📊

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