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BOSTON MARATHON 2025

Dannie Wu

Bib: 21045•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Masters (Masters Women)
#0 / 6759
Top 29%
Division (F55-59)
#0 / 994
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:09
Rank: #17322
Start → 5K
25:09 | 8:06/mi
10K· 6.21 mi
50:39
Rank: #17648 (-326)
5K → 10K
25:30 | 8:12/mi
15K· 9.32 mi
1:16:04
Rank: #17496 (+152)
10K → 15K
25:25 | 8:11/mi
20K· 12.43 mi
1:41:26
Rank: #17110 (+386)
15K → 20K
25:22 | 8:10/mi
Half· 13.11 mi
1:46:52
Rank: #17027 (+83)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:06:54
Rank: #16768 (+259)
Half → 25K
20:02 | 8:16/mi
30K· 18.64 mi
2:33:23
Rank: #16396 (+372)
25K → 30K
26:29 | 8:31/mi
20M
2:45:01
Rank: #16201 (+195)
30K → 20M
11:38 | 8:34/mi
21M
2:54:07
Rank: #16025 (+176)
20M → 21M
9:06 | 9:06/mi
35K· 21.75 mi
3:00:19
Rank: #15915 (+110)
21M → 35K
6:12 | 8:17/mi
23M
3:11:09
Rank: #15751 (+164)
35K → 23M
10:50 | 8:39/mi
24M
3:19:36
Rank: #15672 (+79)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:26:58
Rank: #15605 (+67)
24M → 40K
7:22 | 8:37/mi
25.2M
3:30:16
Rank: #15587 (+18)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:38:58
Rank: #15601 (-14)
25.2M → Finish
8:42 | 8:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:52
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:52:06
Pace8:33 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3525:098:0625:09
8:06
-
10K
6.21 mi11:45:0550:398:0925:30
8:12
+0:06
15K
9.32 mi12:10:301:16:048:1025:25
8:11
-0:01
20K
12.43 mi12:35:521:41:268:1025:22
8:10
-0:01
Half
13.11 mi12:41:181:46:528:095:26
7:58
-0:12
25K
15.53 mi13:01:202:06:548:1020:02
8:16
+0:18
30K
18.64 mi13:27:492:33:238:1426:29
8:31
+0:15
20M
20.00 mi13:39:272:45:018:1511:38
8:34
+0:03
21M
21.00 mi13:48:332:54:078:179:06
9:06
+0:32
35K
21.75 mi13:54:453:00:198:176:12
8:17
-0:49
23M
23.00 mi14:05:353:11:098:1910:50
8:39
+0:22
24M
24.00 mi14:14:023:19:368:198:27
8:27
-0:12
40K
24.85 mi14:21:243:26:588:207:22
8:37
+0:10
25.2M
25.20 mi14:24:423:30:168:213:18
9:34
+0:57
Finish
26.22 mi14:33:243:38:588:218:42
8:32
-1:02

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

7:58 /mi

Average Pace

8:21 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:52

49% of race

Time at Steady Pace

1:28:52

41% of race

Time at Slower Pace

23:14

11% of race

Average Pace: 8:21 /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 mi11:19:3525:098:0625:09
8:06
#17322
10K
6.21 mi11:45:0550:398:0925:30
8:12
#17648
15K
9.32 mi12:10:301:16:048:1025:25
8:11
#17496
20K
12.43 mi12:35:521:41:268:1025:22
8:10
#17110
Half
13.11 mi12:41:181:46:528:095:26
7:58
#17027
25K
15.53 mi13:01:202:06:548:1020:02
8:16
#16768
30K
18.64 mi13:27:492:33:238:1426:29
8:31
#16396
20M
20.00 mi13:39:272:45:018:1511:38
8:34
#16201
21M
21.00 mi13:48:332:54:078:179:06
9:06
#16025
35K
21.75 mi13:54:453:00:198:176:12
8:17
#15915
23M
23.00 mi14:05:353:11:098:1910:50
8:39
#15751
24M
24.00 mi14:14:023:19:368:198:27
8:27
#15672
40K
24.85 mi14:21:243:26:588:207:22
8:37
#15605
25.2M
25.20 mi14:24:423:30:168:213:18
9:34
#15587
Finish
26.22 mi14:33:243:38:588:218:42
8:32
#15601
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi173225927592717277(Top 61%)5885(Top 48%)5885(Top 592%)
10K6.21 mi3.10 mi17648-3266120-1936120-19317951(Top 63%)6260(Top 51%)6260(Top 630%)
15K9.32 mi3.11 mi17496+1526010+1106010+11017277(Top 61%)5885(Top 48%)5885(Top 592%)
20K12.43 mi3.11 mi17110+3865810+2005810+20016089(Top 57%)5269(Top 43%)5269(Top 530%)
Half13.11 mi0.68 mi17027+835762+485762+4815677(Top 55%)4997(Top 41%)4997(Top 503%)
25K15.53 mi2.42 mi16768+2595628+1345628+13415688(Top 55%)5122(Top 42%)5122(Top 515%)
30K18.64 mi3.11 mi16396+3725470+1585470+15814916(Top 53%)4857(Top 40%)4857(Top 489%)
20M20.00 mi1.36 mi16201+1955382+885382+8814193(Top 50%)4615(Top 38%)4615(Top 464%)
21M21.00 mi1.00 mi16025+1765316+665316+6614133(Top 50%)4706(Top 38%)4706(Top 473%)
35K21.75 mi0.75 mi15915+1105272+445272+4414214(Top 50%)4802(Top 39%)4802(Top 483%)
23M23.00 mi1.25 mi15751+1645225+475225+4714280(Top 50%)4952(Top 40%)4952(Top 498%)
24M24.00 mi1.00 mi15672+795193+325193+3214228(Top 50%)4947(Top 40%)4947(Top 498%)
40K24.85 mi0.85 mi15605+675184+95184+914179(Top 50%)5059(Top 41%)5059(Top 509%)
25.2M25.20 mi0.35 mi15587+185187-35187-314995(Top 53%)5542(Top 45%)5542(Top 558%)
Finish26.22 mi1.02 mi15601-145210-235210-2316475(Top 58%)6285(Top 51%)6285(Top 632%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17277

Females

5885

F55-59

5885

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17951

Females

6260

F55-59

6260

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17277

Females

5885

F55-59

5885

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

16089

Females

5269

F55-59

5269

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

15677

Females

4997

F55-59

4997

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15688

Females

5122

F55-59

5122

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14916

Females

4857

F55-59

4857

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

14193

Females

4615

F55-59

4615

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14133

Females

4706

F55-59

4706

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14214

Females

4802

F55-59

4802

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

14280

Females

4952

F55-59

4952

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14228

Females

4947

F55-59

4947

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14179

Females

5059

F55-59

5059

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14995

Females

5542

F55-59

5542

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16475

Females

6285

F55-59

6285

Passing Analysis

Category:
Athletes Passed
2703
Passed By
982
Net Change
+1721
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17322
5K → 10K162488-326#17322#17648
10K → 15K278126+152#17648#17496
15K → 20K41731+386#17496#17110
20K → Half852+83#17110#17027
Half → 25K29132+259#17027#16768
25K → 30K43664+372#16768#16396
30K → 20M20813+195#16396#16201
20M → 21M20226+176#16201#16025
21M → 35K12818+110#16025#15915
35K → 23M19531+164#15915#15751
23M → 24M10627+79#15751#15672
24M → 40K10437+67#15672#15605
40K → 25.2M3517+18#15605#15587
25.2M → Finish5670-14#15587#15601
TOTALS2703982+1721
📊

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