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BOSTON MARATHON 2025

Bianca Colella

Bib: 27779•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
33:05
Rank: #27044
Start → 5K
33:05 | 10:39/mi
10K· 6.21 mi
1:08:30
Rank: #27348 (-304)
5K → 10K
35:25 | 11:24/mi
15K· 9.32 mi
1:45:15
Rank: #27430 (-82)
10K → 15K
36:45 | 11:50/mi
20K· 12.43 mi
2:28:25
Rank: #27777 (-347)
15K → 20K
43:10 | 13:54/mi
Half· 13.11 mi
2:38:16
Rank: #27857 (-80)
20K → Half
9:51 | 14:26/mi
25K· 15.53 mi
3:18:25
Rank: #28114 (-257)
Half → 25K
40:09 | 16:34/mi
30K· 18.64 mi
4:01:04
Rank: #28020 (+94)
25K → 30K
42:39 | 13:44/mi
20M
4:20:40
Rank: #28015 (+5)
30K → 20M
19:36 | 14:25/mi
21M
4:37:20
Rank: #28039 (-24)
20M → 21M
16:40 | 16:40/mi
35K· 21.75 mi
4:47:41
Rank: #28039
21M → 35K
10:21 | 13:50/mi
23M
5:09:01
Rank: #28118 (-79)
35K → 23M
21:20 | 17:02/mi
24M
5:24:37
Rank: #28139 (-21)
23M → 24M
15:36 | 15:36/mi
40K· 24.85 mi
5:39:58
Rank: #28178 (-39)
24M → 40K
15:21 | 17:57/mi
25.2M
5:46:03
Rank: #28188 (-10)
40K → 25.2M
6:05 | 17:38/mi
Finish· 26.22 mi
5:58:20
Rank: #28166 (+22)
25.2M → Finish
12:17 | 12:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:38:16
Pace12:04 /mi
2nd Half
Distance13.11 mi
Time3:20:04
Pace15:16 /mi
📊Positive Split: 26.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:2133:0510:3933:05
10:39
-
10K
6.21 mi12:33:461:08:3011:0135:25
11:24
+0:45
15K
9.32 mi13:10:311:45:1511:1836:45
11:50
+0:26
20K
12.43 mi13:53:412:28:2511:5743:10
13:54
+2:04
Half
13.11 mi14:03:322:38:1612:049:51
14:26
+0:32
25K
15.53 mi14:43:413:18:2512:4640:09
16:34
+2:08
30K
18.64 mi15:26:204:01:0412:5642:39
13:44
-2:50
20M
20.00 mi15:45:564:20:4013:0219:36
14:25
+0:41
21M
21.00 mi16:02:364:37:2013:1216:40
16:40
+2:15
35K
21.75 mi16:12:574:47:4113:1410:21
13:50
-2:50
23M
23.00 mi16:34:175:09:0113:2621:20
17:02
+3:12
24M
24.00 mi16:49:535:24:3713:3215:36
15:36
-1:26
40K
24.85 mi17:05:145:39:5813:4115:21
17:57
+2:21
25.2M
25.20 mi17:11:195:46:0313:446:05
17:38
-0:19
Finish
26.22 mi17:23:365:58:2013:4112:17
12:03
-5:35

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

10:39 /mi

Average Pace

13:41 /mi

Slowest Pace

17:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:32

33% of race

Time at Steady Pace

2:05:37

35% of race

Time at Slower Pace

1:55:11

32% of race

Average Pace: 13:40 /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 mi11:58:2133:0510:3933:05
10:39
#27044
10K
6.21 mi12:33:461:08:3011:0135:25
11:24
#27348
15K
9.32 mi13:10:311:45:1511:1836:45
11:50
#27430
20K
12.43 mi13:53:412:28:2511:5743:10
13:54
#27777
Half
13.11 mi14:03:322:38:1612:049:51
14:26
#27857
25K
15.53 mi14:43:413:18:2512:4640:09
16:34
#28114
30K
18.64 mi15:26:204:01:0412:5642:39
13:44
#28020
20M
20.00 mi15:45:564:20:4013:0219:36
14:25
#28015
21M
21.00 mi16:02:364:37:2013:1216:40
16:40
#28039
35K
21.75 mi16:12:574:47:4113:1410:21
13:50
#28039
23M
23.00 mi16:34:175:09:0113:2621:20
17:02
#28118
24M
24.00 mi16:49:535:24:3713:3215:36
15:36
#28139
40K
24.85 mi17:05:145:39:5813:4115:21
17:57
#28178
25.2M
25.20 mi17:11:195:46:0313:446:05
17:38
#28188
Finish
26.22 mi17:23:365:58:2013:4112:17
12:03
#28166
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27044113511135127510(Top 97%)11688(Top 96%)11688(Top 214%)
10K6.21 mi3.10 mi27348-30411562-21111562-21127494(Top 97%)11662(Top 95%)11662(Top 213%)
15K9.32 mi3.11 mi27430-8211613-5111613-5127510(Top 97%)11688(Top 96%)11688(Top 214%)
20K12.43 mi3.11 mi27777-34711841-22811841-22828209(Top 99%)12125(Top 99%)12125(Top 222%)
Half13.11 mi0.68 mi27857-8011887-4611887-4628305(Top 100%)12183(Top 100%)12183(Top 223%)
25K15.53 mi2.42 mi28114-25712052-16512052-16528364(Top 100%)12214(Top 100%)12214(Top 223%)
30K18.64 mi3.11 mi28020+9411999+5311999+5327306(Top 96%)11664(Top 95%)11664(Top 213%)
20M20.00 mi1.36 mi28015+512001-212001-227594(Top 97%)11867(Top 97%)11867(Top 217%)
21M21.00 mi1.00 mi28039-2412017-1612017-1628066(Top 99%)12090(Top 99%)12090(Top 221%)
35K21.75 mi0.75 mi2803912018-112018-127594(Top 97%)11905(Top 97%)11905(Top 218%)
23M23.00 mi1.25 mi28118-7912076-5812076-5828280(Top 100%)12191(Top 100%)12191(Top 223%)
24M24.00 mi1.00 mi28139-2112092-1612092-1628163(Top 99%)12163(Top 99%)12163(Top 222%)
40K24.85 mi0.85 mi28178-3912118-2612118-2628314(Top 100%)12200(Top 100%)12200(Top 223%)
25.2M25.20 mi0.35 mi28188-1012126-812126-828165(Top 99%)12165(Top 99%)12165(Top 222%)
Finish26.22 mi1.02 mi28166+2212109+1712109+1726854(Top 95%)11564(Top 95%)11564(Top 211%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

27510

Females

11688

F18-39

11688

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

27494

Females

11662

F18-39

11662

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

27510

Females

11688

F18-39

11688

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

28209

Females

12125

F18-39

12125

20K→Half

12.4 - 13.1 mi

Top 100%
×2stories
+19ft-37ft

Overall

28305

Females

12183

F18-39

12183

Half→25K

13.1 - 15.5 mi

Top 100%
×4stories
+66ft-88ft

Overall

28364

Females

12214

F18-39

12214

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

27306

Females

11664

F18-39

11664

30K→20M

18.6 - 20.0 mi

Top 97%
×5stories
+64ft-50ft

Overall

27594

Females

11867

F18-39

11867

20M→21M

20.0 - 21.0 mi

Top 99%
×8stories
+106ft-24ft

Overall

28066

Females

12090

F18-39

12090

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

27594

Females

11905

F18-39

11905

35K→23M

21.8 - 23.0 mi

Top 100%
×5stories
+23ft-63ft

Overall

28280

Females

12191

F18-39

12191

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

28163

Females

12163

F18-39

12163

24M→40K

24.0 - 24.9 mi

Top 100%
×1story
+6ft-20ft

Overall

28314

Females

12200

F18-39

12200

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28165

Females

12165

F18-39

12165

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2stories
+22ft-21ft

Overall

26854

Females

11564

F18-39

11564

Passing Analysis

Category:
Athletes Passed
290
Passed By
1412
Net Change
-1122
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27044
5K → 10K44348-304#27044#27348
10K → 15K62144-82#27348#27430
15K → 20K9356-347#27430#27777
20K → Half282-80#27777#27857
Half → 25K6263-257#27857#28114
25K → 30K995+94#28114#28020
30K → 20M2419+5#28020#28015
20M → 21M630-24#28015#28039
21M → 35K990#28039#28039
35K → 23M079-79#28039#28118
23M → 24M425-21#28118#28139
24M → 40K039-39#28139#28178
40K → 25.2M111-10#28178#28188
25.2M → Finish242+22#28188#28166
TOTALS2901412-1122
📊

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