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BOSTON MARATHON 2025

Anna Biondo

Bib: 28339•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:28
Rank: #25896
Start → 5K
31:28 | 10:08/mi
10K· 6.21 mi
1:02:52
Rank: #25698 (+198)
5K → 10K
31:24 | 10:06/mi
15K· 9.32 mi
1:33:34
Rank: #25386 (+312)
10K → 15K
30:42 | 9:53/mi
20K· 12.43 mi
2:04:14
Rank: #25014 (+372)
15K → 20K
30:40 | 9:52/mi
Half· 13.11 mi
2:10:57
Rank: #24971 (+43)
20K → Half
6:43 | 9:51/mi
25K· 15.53 mi
2:37:53
Rank: #25053 (-82)
Half → 25K
26:56 | 11:07/mi
30K· 18.64 mi
3:10:48
Rank: #24717 (+336)
25K → 30K
32:55 | 10:36/mi
20M
3:24:38
Rank: #24558 (+159)
30K → 20M
13:50 | 10:11/mi
21M
3:35:08
Rank: #24338 (+220)
20M → 21M
10:30 | 10:30/mi
35K· 21.75 mi
3:42:21
Rank: #24229 (+109)
21M → 35K
7:13 | 9:39/mi
23M
3:55:13
Rank: #24065 (+164)
35K → 23M
12:52 | 10:17/mi
24M
4:05:21
Rank: #23976 (+89)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
4:13:56
Rank: #23859 (+117)
24M → 40K
8:35 | 10:02/mi
25.2M
4:17:41
Rank: #23809 (+50)
40K → 25.2M
3:45 | 10:52/mi
Finish· 26.22 mi
4:27:23
Rank: #23745 (+64)
25.2M → Finish
9:42 | 9:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:57
Pace9:59 /mi
2nd Half
Distance13.11 mi
Time2:16:26
Pace10:24 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:4331:2810:0831:28
10:08
-
10K
6.21 mi12:31:071:02:5210:0731:24
10:06
-0:02
15K
9.32 mi13:01:491:33:3410:0230:42
9:53
-0:13
20K
12.43 mi13:32:292:04:1410:0030:40
9:52
-0:01
Half
13.11 mi13:39:122:10:579:596:43
9:51
-0:01
25K
15.53 mi14:06:082:37:5310:1026:56
11:07
+1:16
30K
18.64 mi14:39:033:10:4810:1432:55
10:36
-0:31
20M
20.00 mi14:52:533:24:3810:1413:50
10:11
-0:25
21M
21.00 mi15:03:233:35:0810:1510:30
10:30
+0:19
35K
21.75 mi15:10:363:42:2110:137:13
9:39
-0:51
23M
23.00 mi15:23:283:55:1310:1412:52
10:17
+0:38
24M
24.00 mi15:33:364:05:2110:1310:08
10:08
-0:09
40K
24.85 mi15:42:114:13:5610:138:35
10:02
-0:06
25.2M
25.20 mi15:45:564:17:4110:143:45
10:52
+0:50
Finish
26.22 mi15:55:384:27:2310:129:42
9:31
-1:21

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

9:31 /mi

Average Pace

10:12 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:17

72% of race

Time at Steady Pace

1:14:06

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:12 /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 mi11:59:4331:2810:0831:28
10:08
#25896
10K
6.21 mi12:31:071:02:5210:0731:24
10:06
#25698
15K
9.32 mi13:01:491:33:3410:0230:42
9:53
#25386
20K
12.43 mi13:32:292:04:1410:0030:40
9:52
#25014
Half
13.11 mi13:39:122:10:579:596:43
9:51
#24971
25K
15.53 mi14:06:082:37:5310:1026:56
11:07
#25053
30K
18.64 mi14:39:033:10:4810:1432:55
10:36
#24717
20M
20.00 mi14:52:533:24:3810:1413:50
10:11
#24558
21M
21.00 mi15:03:233:35:0810:1510:30
10:30
#24338
35K
21.75 mi15:10:363:42:2110:137:13
9:39
#24229
23M
23.00 mi15:23:283:55:1310:1412:52
10:17
#24065
24M
24.00 mi15:33:364:05:2110:1310:08
10:08
#23976
40K
24.85 mi15:42:114:13:5610:138:35
10:02
#23859
25.2M
25.20 mi15:45:564:17:4110:143:45
10:52
#23809
Finish
26.22 mi15:55:384:27:2310:129:42
9:31
#23745
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25896107051070524736(Top 87%)10077(Top 82%)10077(Top 184%)
10K6.21 mi3.10 mi25698+19810600+10510600+10525546(Top 90%)10550(Top 86%)10550(Top 193%)
15K9.32 mi3.11 mi25386+31210434+16610434+16624736(Top 87%)10077(Top 82%)10077(Top 184%)
20K12.43 mi3.11 mi25014+37210238+19610238+19623953(Top 84%)9679(Top 79%)9679(Top 177%)
Half13.11 mi0.68 mi24971+4310223+1510223+1524504(Top 86%)9998(Top 82%)9998(Top 183%)
25K15.53 mi2.42 mi25053-8210280-5710280-5725364(Top 89%)10496(Top 86%)10496(Top 192%)
30K18.64 mi3.11 mi24717+33610126+15410126+15423160(Top 82%)9417(Top 77%)9417(Top 172%)
20M20.00 mi1.36 mi24558+15910045+8110045+8121532(Top 76%)8650(Top 71%)8650(Top 158%)
21M21.00 mi1.00 mi24338+2209953+929953+9220041(Top 71%)7938(Top 65%)7938(Top 145%)
35K21.75 mi0.75 mi24229+1099905+489905+4820871(Top 73%)8441(Top 69%)8441(Top 154%)
23M23.00 mi1.25 mi24065+1649828+779828+7721370(Top 75%)8738(Top 71%)8738(Top 160%)
24M24.00 mi1.00 mi23976+899794+349794+3421775(Top 77%)9024(Top 74%)9024(Top 165%)
40K24.85 mi0.85 mi23859+1179747+479747+4720599(Top 73%)8467(Top 69%)8467(Top 155%)
25.2M25.20 mi0.35 mi23809+509731+169731+1620318(Top 72%)8338(Top 68%)8338(Top 152%)
Finish26.22 mi1.02 mi23745+649705+269705+2621259(Top 75%)8797(Top 72%)8797(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

24736

Females

10077

F18-39

10077

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

25546

Females

10550

F18-39

10550

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

24736

Females

10077

F18-39

10077

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

23953

Females

9679

F18-39

9679

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

24504

Females

9998

F18-39

9998

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25364

Females

10496

F18-39

10496

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23160

Females

9417

F18-39

9417

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

21532

Females

8650

F18-39

8650

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20041

Females

7938

F18-39

7938

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

20871

Females

8441

F18-39

8441

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21370

Females

8738

F18-39

8738

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21775

Females

9024

F18-39

9024

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20599

Females

8467

F18-39

8467

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20318

Females

8338

F18-39

8338

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21259

Females

8797

F18-39

8797

Passing Analysis

Category:
Athletes Passed
2501
Passed By
350
Net Change
+2151
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25896
5K → 10K298100+198#25896#25698
10K → 15K33321+312#25698#25386
15K → 20K3808+372#25386#25014
20K → Half5512+43#25014#24971
Half → 25K81163-82#24971#25053
25K → 30K34711+336#25053#24717
30K → 20M1634+159#24717#24558
20M → 21M2222+220#24558#24338
21M → 35K1101+109#24338#24229
35K → 23M1706+164#24229#24065
23M → 24M956+89#24065#23976
24M → 40K1192+117#23976#23859
40K → 25.2M533+50#23859#23809
25.2M → Finish7511+64#23809#23745
TOTALS2501350+2151
📊

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